Patent Application
20140252723
The present disclosure relates to a self-retaining gasket and fastener retainer.
This section provides background information related to the present disclosure, which is not necessarily prior art.
A gasket is a mechanical seal typically positioned at an interface or joint between two joined objects on a mating surface of one or both of the objects. The gasket provides a seal between the objects to prevent leakage of fluid or other material into or out of the objects. The gasket is typically positioned between the two objects by an assembler, which results in an additional assembly step that increases production time and cost. It would thus be desirable for the gasket to be prepositioned on the mating surface prior to joinder of the two objects during assembly. It would also be desirable for the gasket to retain a fastener to the object.
This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
The present teachings provide for a gasket including a main body, a first retention tab, a second retention tab, and a third retention tab. The main body defines a first aperture. The first retention tab extends from the main body at the first aperture. The second retention tab extends from the main body at the first aperture. The third retention tab extends from the main body at the first aperture.
The present teachings further provide for a gasket that includes a main body defining a first aperture. A first retention tab extends from the main body at a first portion of the first aperture. A second retention tab extends from the main body at a second portion of the first aperture opposite to the first portion. A third retention tab extends from the main body at the second portion of the first aperture. The third retention tab is spaced apart from the second retention tab to define a gap therebetween. The first retention tab is opposite to the gap.
The present teachings also provide for a gasket that includes a main body defining a first aperture. A first retention tab, a second retention tab, and a third retention tab each extend from the main body at the first aperture. Each of the retention tabs include a first portion extending from the main body at an acute angle relative to a plane extending parallel to the main body. The first portion of the first retention tab extends towards the first portion of both the second and third retention tabs. The first portion of the second and third retention tabs extends towards the first portion of the first retention tab. The second portion extends from, and in a direction opposite to, the first portion of each of the first retention tab, the second retention tab, and the third retention tab. An elbow portion is defined where each first portion and second portion meet.
Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.
Example embodiments will now be described more fully with reference to the accompanying drawings.
With initial reference to
The main body 12 defines a first aperture 30a, a second aperture 30b, and a third aperture 32. The first aperture 30a is proximate to the first end 18, the second aperture 30b is proximate to the second end 20, and the third aperture 32 is between the first aperture 30a and the second aperture 30b. Each of the first, second and third apertures 30a, 30b, and 32, extend through the main body 12 between the first and second surfaces 14 and 16.
The first aperture 30a includes a first side or portion 34a and a second side or portion 36a. The first side 34a is proximate to the first side surface 22, and is opposite to the second side 36a, which is proximate to the second side surface 24. Between the first side 34a and the second side 36a, the first aperture 30a defines a first concave surface 38a and a second concave surface 40a.
At the first aperture 30a is a first tab 42a, a second tab 44a, and a third tab 46a. Each of the first, second, and third tabs 42a, 44a, and 46a extend from the main body 12 at the second surface 16, and extend beyond the second surface 16. The first tab 42a extends from the second surface 16 at the first side 34a of the first aperture 30a. The second and third tabs 44a and 46a extend from the second surface 16 at the second side 36a of the first aperture 30a.
With reference to
The second tab 44a and the third tab 46a are generally similar to the first tab 42a. Therefore, the second tab 44a includes a first portion 54a, a second portion 56a, and a third portion 58a, which are respectively similar to the first portion 48a, the second portion 50a, and the third portion 52a of the first tab 42a. A third tab 46a includes a first portion 60a, a second portion 62a, and a third portion 64a, which are respectively similar to the first portion 48a, the second portion 50a, and the third portion 52a of the first tab 42a. The first portion 60a, the second portion 62a, and the third portion 64a are also respectively similar to the first portion 54a, the second portion 56a, and the third portion 58a of the second tab 44a. The second and third tabs 44a and 46a differ from the first tab 42a with respect to their orientation. The second and third tabs 44a and 46a extend from the second side 36a of the first aperture 30a, and thus the first portions 54a and 60a extend from the second side 36a towards the longitudinal axis A. The second portions 56a and 62a extend away from the longitudinal axis A.
The first tab 42a includes a first elbow 66a between the first portion 48a and the second portion 50a thereof. The second tab 44a includes a second elbow 68a between the first and second portions 54a and 56a thereof. The third tab 46a includes a third elbow 70a between the first and second portions 60a and 62a thereof. The first elbow 66a is the portion of the first tab 42a closest to the longitudinal axis A, which extends through the center of the first aperture 30a. Similarly, the second elbow 68a and the third elbow 70a are the portions of the second tab 44a and the third tab 46a respectively that extend furthest towards the longitudinal axis A. As explained further herein, the first, second, and third elbows 66a, 68a, and 70a each provide a fastener retention surface for retaining a fastener between the first, second and third tabs 42a, 44a, and 46a.
The second tab 44a and the third tab 46a are spaced apart at the second side 36a to define a gap 72 therebetween. The first tab 42a is arranged at the first side 34a opposite to the gap 72. The first, second, and third tabs 42a, 44a, and 46a can be arranged at any other suitable orientation about the first aperture 30a in order to securely retain a fastener within the first aperture 30a and/or to the gasket 10.
At the second aperture 30b, the gasket 10 includes a first tab 42b, a second tab 44b, and a third tab 46b. The first, second, and third tabs 42b, 44b, and 46b are respectively similar to the first, second, and third tabs 42a, 44a, and 46a. Therefore, the description of the first, second, and third tabs 42a, 44a, and 46a also applies to the first, second, and third tabs 42b, 44b, and 46b. The features of the first, second, and third tabs 42b, 44b, and 46b are illustrated with the same reference numbers used for the first, second, and third tabs 42a, 44a, and 46a, but include the letter “b” instead of the letter “a.”
With additional reference to
To connect the gasket 10 to the part 80, and specifically the outer surface 84, the gasket 10 is positioned such that the second or inner surface 16 thereof is seated on the outer surface 84. The first, second, and third tabs 42a, 44a, and 46a are seated within the bore 82. As illustrated in
Interaction between the first, second, and third tabs 42a, 44a, and 46a and the bore 82 will retain the gasket 10 to the part 80 at the outer surface 84. The first and second flanges 86 and 88, and the first and second lips 90 and 92 need not be present at the bore 82 in order to retain the first, second, and third tabs 42a, 44a, and 46a therein. For example, the first, second, and third tabs 42a, 44a, and 46a can be biased outward and away from the longitudinal axis A. Thus, the third portions 52a, 58a, and 64a can be biased against the inner surface 82A of the bore 82 to create a friction fit between each of the first, second, and third tabs 42a, 44a, and 46a to thereby retain the first, second, and third tabs 42a, 44a, and 46a within the bore 82. The third portions 52a, 58a, and 64a need not be included, and thus the second portions 50a, 56a, and 62a can directly contact the inner surface 82A of the bore 82 in order to retain the gasket 10 to the part 80.
The gasket 10 can also retain a suitable fastener, such as the fastener 94, within the bore 82. The fastener 94 generally includes a head 96, a shaft 98, and a threaded portion 100 of the shaft 98. The fastener 94 is arranged within the bore 82 such that the shaft 98 extends through the first aperture 30a and across the first, the second, and the third tabs 42a, 44a, and 46a. The shaft 98 is sized such that it contacts the first elbow 66a, the second elbow 68a, and the third elbow 70a. Alternatively, the first tab 42a, the second tab 44a, and the third tab 46a can be arranged about the first aperture 30a and spaced from one another such that the first, second, and third elbows 66a, 68a, and 70a contact the shaft 98 of the fastener 94 in order to couple the fastener 94 to the first, second, and third tabs 42a, 44a, and 46a, and to the gasket 10.
The gasket 10 can be coupled to the part 80 at another bore similar to the bore 82 through interaction between the first, second, and third tabs 42b, 44b, and 46b and the additional bore. The first, second, and third tabs 42b, 44b, and 46b will interact with the additional bore just as the first, second, and third tabs 42a, 44a, and 46a interact with bore 82 as described above. An additional fastener, similar to the fastener 94, can also be retained to the gasket 10 with the first, second, and third tabs 42b, 44b, and 46b.
The gasket 10 may thus be coupled to a suitable part, such as the part 80, so that the gasket 10 is in position when the part 80 is assembled to any other suitable part, such as with the fastener 94. The fastener 94 will also be in a position within the bore 82 when the part 80 is ready for assembly. The gasket 10 thus decreases assembly time and can advantageously reduce assembly costs.
The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
