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Filler Neck Closure

a neck closure and seal technology, applied in the direction of caps, sealing, liquid handling, etc., can solve the problems of increasing the required force to overcome the friction between the contacting surfaces, and the connection suffers, so as to reduce the risk of the seal sticking to the seal seat and significantly reduce the force required to remove the closure

Inactive Publication Date: 2008-07-17
VOLVO CAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a closure for a filler neck that can be easily installed and removed. The closure has a cup-shaped body with a seal for contacting the filler neck. The closure has fastening elements that engage with the filler neck when installed. The fastening elements are arranged symmetrically or asymmetrically around the periphery of the closure. The fastening elements have resilient tongues that snap into place on the filler neck to hold it securely. The closure can be used with different types of filler necks and is easy to install and remove.

Problems solved by technology

Both connections suffer problems relating to relatively high friction forces when twisting the closure to remove it prior to refilling.
The problem is usually caused by a seal made from rubber or a similar material being compressed to seal against a mouth surrounding the opening of the filler neck.
Overcoming the friction between the contacting surfaces of the seal and the mouth may require significant force.
The above problem may be compounded by the seal sticking to the mouth of the filler neck, thereby increasing the required force to overcome the friction between the contacting surfaces.
If the friction force is too high, a tool may be required to remove the closure, which may damage the cap.

Method used

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  • Filler Neck Closure
  • Filler Neck Closure
  • Filler Neck Closure

Examples

Experimental program
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Effect test

Embodiment Construction

[0024]FIG. 1 shows a filler neck 1 with a closure 2 according to a first embodiment of the invention. According to this embodiment, the closure is an oil filler cap 2 engageable with an oil filler neck 1 on an internal combustion engine. The oil filler cap 2 has a cup-shaped body having a top 3 with an upper surface 4 facing the user and a peripheral wall 5. The peripheral wall 5 is provided with releasable fastening elements in the shape of resilient tongues 6, 7, 8 arranged for interaction with the filler neck 1. The embodiment shows an oil filler cap 2 held in place by three resilient tongues 6, 7, 8 (one shown). The resilient tongues 6, 7, 8 will be described in further detail in connection with FIGS. 3 and 4. Peripheral wall 5 shown in this example is cylindrical and substantially concentrically mounted onto filler neck 1. In this example, three resilient tongues 6, 7, 8 are integrated in and extend axially from the peripheral wall 5.

[0025]FIG. 2 shows the filler neck 1 of FIG....

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PUM

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Abstract

The invention relates to a closure engageable with a filler neck having an opening and a seal seat disposed axially facing said closure, the closure having a cup-shaped body having a top and a peripheral wall, a seal for contacting the seal seat, and releasable fastening elements interacting with the filler neck. At least two fastening elements are arranged circumferentially to extend axially from the peripheral wall. Each fastening element is arranged to engage with a corresponding lock surface located on the outer periphery of the filler neck remote from and facing away from the central axis of the opening.

Description

TECHNICAL FIELD[0001]The invention relates to a filler neck closure provided with snap-on attachments for locking the closure in place. This allows the closure to be pushed straight onto the filler neck. The closure is removed by tilting and pulling a fixed grip on the closure to release the snap-on attachments. The invention is primarily intended for use on vehicles.BACKGROUND[0002]Commonly a filler neck includes closures or caps with a threaded connection or bayonet connection. Both connections suffer problems relating to relatively high friction forces when twisting the closure to remove it prior to refilling. The problem is usually caused by a seal made from rubber or a similar material being compressed to seal against a mouth surrounding the opening of the filler neck. Overcoming the friction between the contacting surfaces of the seal and the mouth may require significant force.[0003]The above problem may be compounded by the seal sticking to the mouth of the filler neck, ther...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D55/02B65D53/00B65D41/02
CPCF01M11/0408B65D41/16
Inventor HANSSON, LARSBELLANDER, KARIN
Owner VOLVO CAR CORP
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