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US 5,685,659 AGranted
Pivot for articulating the load-bearing components of a jack
AssigneeAugust Bilstein GmbH & Co. KG
InventorsPeter Brosius, Reinhard Holscher
Life of this patent
Estimating the term…
Abstract
Pivot for articulating the load-bearing components of a jack. The pivot comprises a shaft that rotates in a bore. The components are lengths of U section or have lateral flanges or upright edges that overlap in the vicinity of the pivot. The object is to decrease the weight of the jack. Instead of a solid bolt, the axis is a hollow neck (19) stamped through the sides (15 & 17) or flanges (13) of one component and extending through the bore (18) in its counterpart.
Claims6
A jack having articulating load-bearing components comprising:
- a shaft rotating in a bore contained in an arm of said jack and connected to said components;
- said components being lengths of U-section overlapping adjacent said pivot, said lengths of U-section having sides;
- a hollow neck only stamped through sides of a first of said components and extending through a bore in a second of said components cooperating with the first of said components, said first U-section component lying inside said second U-section component, said pivot having a pivot point adjacent said first component and said second component;
- said first component and said second component having a U-shape in a region of said pivot point, said pivot being secure against collapse when said jack is under load;
- said first U-section component having two substantially parallel sides with a hollow neck at each side;
- said second U-section component having two substantially parallel sides with only a bore through each side, each hollow neck extending into the bore adjacent to the hollow neck, said first U-section component lying entirely inside said second U-section component.
3 more elements
A jack having articulating load-bearing components comprising:
- a shaft rotating in a bore contained in an arm of said jack and connected to said components;
- said components being lengths of U-section overlapping adjacent said pivot, said lengths of U-section having sides;
- a hollow neck only stamped through sides of a first of said components and extending through a bore in a second of said components cooperating with the first of said components, said first U-section component lying inside said second U-section component, said pivot having a pivot point adjacent said first component and said second component;
- said first component and said second component having a U-shape in a region of said pivot point, said pivot being secure against collapse when said jack is under load;
- said neck having an expanded edge that is wider than said bore in said second component, said expanded edge being a clinched expanded edge;
- at least a part of said bore in said second component being cylindrical;
- and a bushing between said bore in said second component and said neck;
- said first U-section component having two substantially parallel sides with a hollow neck at each side;
- said second U-section component having two substantially parallel sides with only a bore through each side, each hollow neck extending into the bore adjacent to the hollow neck, said first U-section component lying entirely inside said second U-section component.
6 more elements
Dependencies are inferred from the claim text.