Velko Hinge, Inc. - Hinge Terminology

Hinge Length  |  Hinge Pin Retention  |  Custom Hinge Piercing  |  Formed Leaves  |  Custom Notched Hinge Leaves  |  Fasteners  |  Slip Joint Hinges  |  Multi-Pin and Multi-Leaf Hinges

Hinge Length:

Continuous hinges and butt hinges can be cut to exact length as required. Hinges should, however, be designed to a length that is a multiple of the knuckle length to eliminate partial knuckles. If a partial knuckle length cannot be avoided, please keep the following points in mind: 1) partial knuckle lengths should be the same as or larger than the knuckle diameter; 2) when partial knuckles are required on both ends, they should be on the same leaf; 3) please be advised that continuous hinges and butt hinges with partial-end knuckles on one leaf may not rotate as freely as full-end knuckles.

Full-End Knuckle Hinge Length Full-End Knuckle Hinge Length

Partial-End Knuckle Hinge Length Partial-End Knuckle Hinge Length

Hinge Pin Retention:

All continuous hinges and butt hinges can be done in any of the following methods.

Crimped Ends Hinge Pin Retention Crimped Ends Hinge Pin Retention		Headed Pins Hinge Pin Retention Headed Pins Hinge Pin Retention		Plain Ends Hinge Pin Retention Plain Ends Hinge Pin Retention
Spun Ends Hinge Pin Retention Spun Ends Hinge Pin Retention		Staked Pin Hinge Pin Retention Staked Pin Hinge Pin Retention		Welded Pin Hinge Pin Retention Welded Pin Hinge Pin Retention

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Custom Hinge Piercing:

Here are a few examples of common piercings:

Many designs for piercing are available. When ordering or requesting a quotation, include: a print or sketch of your hinge showing hinge dimensions, hole diameter and type, hole centers, edge dimensions and end dimensions.

Countersink Custom Hinge Piercing Countersink Custom Hinge Piercing

Obround Custom Hinge Piercing Obround Custom Hinge Piercing

Square-Holes-Notch Radius Custom Hinge Piercing Square-Holes-Notch Radius Custom Hinge Piercing

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• Formed Leaves: Formed hinge leaves can be manufactured in a variety of configurations. Dimensions should be taken from the pin center line and inside of forms.If unequal leaf forming is required, specify dimensions for each leaf.

Formed Leaves Formed Leaves		Formed Leaves Formed Leaves		Formed Leaves Formed Leaves
Formed Leaves Formed Leaves

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• Custom Notched Hinge Leaves: Notching can be done in various ways; corners notched, angled corners, radius corners, and center notching.

Angled Corners Custom Notched Hinge Leaves Angled Corners Custom Notched Hinge Leaves		Center Notching Custom Notched Hinge Leaves Center Notching Custom Notched Hinge Leaves		Corners Notched Custom Notched Hinge Leaves Corners Notched Custom Notched Hinge Leaves
Radius Corners Custom Notched Hinge Leaves Radius Corners Custom Notched Hinge Leaves

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• Fasteners: Fasteners can be installed directly to hinge by means of welding or Pem fasteners.

Pem Fastners Pem Fastners

Weld Nuts Fasteners Weld Nuts Fasteners

Weld Studs Fasteners Weld Studs Fasteners

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• Slip Joint Hinges: Slip joint hinges are normally used when requirements call for doors to be removed. Indicate right-or left-hand and male or female when ordering.

Left Hand Slip Joint Hinges Left Hand Slip Joint Hinges

Right Hand Slip Joint Hinges Right Hand Slip Joint Hinges

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• Multi-Pin and Multi-Leaf Hinges: multi-pin and multi-leaf hinges allow for a double action movement.

Multi-Pin Hinges Multi-Pin Hinges

Multi-Leaf Hinges Multi-Leaf Hinges

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