Multi-head bolt and fastener system

Patent metadata

Field	Value
Publication number	US-11788571-B2
Application number	US-202016988538-A
Country	US
Kind code	B2
Filing date	Aug 7, 2020
Priority date	Aug 7, 2020
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A multi-head bolt having a bolt shaft defining a longitudinal axis of the multi-head bolt and a multi-head disposed at a first end of the bolt shaft, the multi-head having at least three pawls, each pawl having a fixed radial orientation relative to the bolt shaft and having a primary plane being aligned with the longitudinal axis of the bolt shaft and having a support surface.

First claim

What is claimed is:

1. A multi-head bolt, comprising:
a bolt shaft defining a longitudinal axis of the multi-head bolt, at least a portion of the bolt shaft being cylindrical and defining a diameter;
a multi-head disposed at a first end of the bolt shaft, the multi-head comprising at least three pawls, each pawl having a fixed radial orientation relative to the bolt shaft and having a primary plane being aligned with the longitudinal axis of the bolt shaft and having a support surface and having an angled side that intersects the primary plane and being inelastic and immovable relative to the bolt shaft, wherein a radial distance of the angled side relative to the bolt shaft decreases as measured from the support surface to the first end of the bolt, wherein the at least three pawls are arranged around an outer circumference of the shaft.

2. The multi-head bolt of claim 1 , wherein at least one pawl is fin-shaped such that the primary plane lies on the longitudinal axis of the bolt shaft and the support surface is perpendicular to the primary plane.

3. The multi-head bolt of claim 2 , wherein a width of at least one pawl is smaller than a diameter of the bolt shaft.

4. The multi-head bolt of claim 3 , wherein the width of the at least one pawl is at least 15% of a diameter of the bolt shaft and at maximum 65% of the diameter of the bolt shaft.

5. The multi-head bolt of claim 4 , wherein the width of the at least one pawl is at least 25% of a diameter of the bolt shaft and at maximum 40% of the diameter of the bolt shaft.

6. The multi-head bolt of claim 4 , wherein the width of the at least one pawl is 33% of the diameter of the bolt shaft.

7. The multi-head bolt of claim 1 , wherein the radial distance of the angled side relative to bolt shaft linearly decreases as measured from the support surface to the first end of the bolt.

8. The multi-head bolt of claim 7 , wherein the bolt shaft defines a cone shape at the first end of the bolt shaft.

9. The multi-head bolt of claim 8 , wherein at least a portion of the angled side is coplanar plane to the cone shape of the first end of the bolt shaft.

10. The multi-head bolt of claim 1 , wherein the primary plane for each pawl is parallel to two opposing lateral sides of each respective pawl.

11. The multi-head bolt of claim 10 , wherein a width defined between the two lateral sides of the at least one pawl is constant along the longitudinal axis.

12. The multi-head bolt of claim 1 , wherein the pawls extend from the bolt shaft in a star-shape configuration symmetrically relative to an outer circumference of the bolt shaft.

13. The multi-head bolt of claim 1 , wherein at least one pawl is in the form of a fin.

14. The multi-head bolt of claim 1 , wherein the support surface extends perpendicularly to the longitudinal axis of the bolt shaft, projecting therewith radially from the bolt shaft's outer circumference.

15. The multi-head bolt claim 1 , wherein the bolt shaft defines has a cone end at an opposite end relative to the multi-head to facilitate insertion of a nut.

16. The multi-head bolt of claim 1 , further comprising a tension-rod-shank fixed to an end of the bolt shaft opposing the multi-head, on which shank a nut can be screwed.

17. The multi-head bolt of claim 1 , wherein the at least three pawls comprises four pawls.

18. The multi-head bolt of claim 1 , wherein the bolt shaft defines a hole extending through the bolt shaft at an opposite end relative to the multi-head a for securing a safety split pin.

19. The multi-head bolt of claim 1 , wherein each pawl has a flat portion arranged between the angled side and the support surface.

20. The multi-head bolt of claim 1 , wherein the at least three pawls extend from the outer circumference of the shaft.

21. The multi-head bolt of claim 1 , wherein the at least three pawls extend from the cylindrical portion of the shaft.

22. A multi-head bolt, comprising
a bolt shaft defining a longitudinal axis of the multi-head bolt, at least a portion of the bolt shaft being cylindrical and defining a diameter;
a multi-head disposed at a first end of the bolt shaft, the multi-head comprising at least three pawls, each pawl having a fixed radial orientation relative to the bolt shaft and having a primary plane being aligned with the longitudinal axis of the bolt shaft and having a support surface, wherein the at least three pawls are arranged around an outer circumference of the shaft,
wherein at least one pawl is shaped such that the primary plane lies on the longitudinal axis of the bolt shaft and the support surface is perpendicular to the primary plane, wherein a width of the at least one pawl is at least 15% of the diameter of the cylindrical portion of the bolt shaft and at maximum 65% of the diameter of the cylindrical portion of the bolt shaft.

23. The multi-head bolt of claim 22 , wherein the at least one pawl is fin-shaped.

24. The multi-head bolt of claim 22 , wherein a width defined between two lateral sides of the at least one pawl is constant along the longitudinal axis.

25. The multi-head bolt of claim 22 , wherein the at least three pawls extend from the outer circumference of the shaft.

26. The multi-head bolt of claim 22 , wherein the at least three pawls extend from the cylindrical portion of the shaft.

27. A multi-head bolt, comprising:
a bolt shaft defining a longitudinal axis of the multi-head bolt;
a multi-head disposed at a first end of the bolt shaft, the multi-head comprising at least three pawls, each pawl having a fixed radial orientation relative to the bolt shaft and having a primary plane being aligned with the longitudinal axis of the bolt shaft and having a support surface and having an angled side that intersects the primary plane and being inelastic and immovable relative to the bolt shaft, wherein a radial distance of the angled side relative to the bolt shaft decreases as measured from the support surface to the first end of the bolt, wherein each pawl has a flat portion arranged between the angled side and the support surface.

28. The multi-head bolt of claim 27 , wherein the at least three pawls are arranged around an outer circumference of the shaft.

29. The multi-head bolt of claim 27 , wherein the at least three pawls extend from the outer circumference of the shaft.

30. The multi-head bolt of claim 27 , wherein the at least three pawls extend from the cylindrical portion of the shaft.

Assignees

• Peri Se

Inventors

• Huber Julian
• Read Andrew
• Sturm Florian

Classifications

• F16B35/06 Primary

  Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 {; separate hook adaptors for bolts F16B43/025}) · CPC title

• F16B5/02

  by means of fastening members using screw-thread ({F16B5/0004 takes precedence}; construction of screw-threaded connections F16B25/00 - F16B39/00) · CPC title

• F16B21/02 Primary

  Releasable fastening devices locking by rotation (with snap-action F16B21/06; studs or coupling pins with resilient protrusions F16B21/08) · CPC title

• F16B37/042

  locking by rotation · CPC title