• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    retaining ring retention system and method the present invention relates to a retained member s configured to prevent centrifugal force from disassociating a retaining ring provided with protrusions from a groove (notch) located on a rotatable axis when ensuring the member retained for the rotatable axis and rotation with the axis. in accordance with the present invention, the retained member includes a substantially annular portion and a retaining tab (lip) provided with a cutout portion. the substantially annular portion defines an opening dimensioned to receive the rotatable axis so that the retained member is rotatable with the axis. the cutout portion is configured to accommodate the projections when in an installation position as the retained member is snapped into the groove. the retaining tab is configured to circumscribe the projections when the projections are rotated relative to the installation position for an installed position and in the groove to prevent the projections from being forced apart by the centrifugal force so that the retaining ring can be disassociate from the slot.
    公开号:BR112015014015B1
    申请号:R112015014015-7
    申请日:2012-12-13
    公开日:2020-06-02
    发明作者:Michael E. Kahl；Kahl Michael E
    申请人:Mack Trucks, Inc；
    IPC主号:
    专利说明:

    RETENTION RING RETENTION METHOD
    TECHNICAL FIELD
    [001] The present invention relates to a retaining ring retention system and method, and in particular to a retaining ring retention system and method for applications involving centrifugal force.
    OVERVIEW OF THE INVENTION
    [002] Retaining rings are typically used to secure one or more components on an axis. In a typical application, at least one component is slid over the shaft, and then the ring is expanded and snapped into a groove (notch) formed at the end of the shaft. The component (s) cannot be removed without first removing the retaining ring, usually by using a retaining ring tool, such as retaining ring clamps, to grasp the projections and apply a strength to spread them apart.
    [003] In situations where retaining rings are located on a rotating axis and subjected to centrifugal force, sufficient centrifugal force can cause the retaining ring to expand radially and move from the retaining groove. Although retaining ring manufacturers typically disclose maximum retaining ring speeds, these speeds are sometimes exceeded by accident or by necessity.
    [004] The present invention relates to a retaining ring retention system and method and, in particular, to
    Petition 870190133019, of 12/13/2019, p. 6/26
    2/12 a retaining ring retention system and method for applications involving centrifugal force.
    SUMMARY OF THE INVENTION
    [005] In accordance with one embodiment of the present invention, a retained member configured to prevent centrifugal force from disassociating a retaining ring provided with projections from a groove located on a rotatable axis when securing the retained member to the rotatable axis and rotation with the axis includes a substantially annular portion and a retaining tab (lip) provided with a cutout portion. The annular portion defines an opening dimensioned to receive the rotatable axis so that the retained member is rotatable with the axis. The cutout portion is configured to accommodate the projections when in an installation position as the retained member is snapped into the groove. The retaining tab is configured to circumscribe the projections when the projections are rotated relative to the installation position for an installed position and in the groove to prevent the projections from being forced apart by the centrifugal force so that the retaining ring can be disassociate from the slot.
    [006] In accordance with another embodiment of the present invention, a method for providing a retained member configured to prevent centrifugal force from causing disassociation of a retained ring provided with protrusions from a groove located on a rotatable axis when ensuring the member retained for the rotatable axis and rotation with the axis includes the provisioning step
    Petition 870190133019, of 12/13/2019, p. 7/26
    3/12 of a retained member that includes a substantially annular portion that defines an opening and a retaining tab that includes a cutout portion, wherein the opening is dimensioned to receive the rotatable axis so that the retained member is rotatable with the axis, the cutout portion being configured to accommodate the projections when in an installation position as the retained member is snapped into the groove, and the retaining tab is configured to circumscribe the projections when the projections are rotated relative to the installation position to an installed position and in the groove to prevent the projections from being forced apart by the centrifugal force so that the retaining ring can disassociate from the groove.
    [007] In accordance with yet another embodiment of the present invention, the retaining ring retaining system includes a rotatable shaft, a retaining ring and a retained member. The rotatable shaft is provided with a groove. The retaining ring is provided with projections including an installed position and an installation position, where a distance between the projections is greater when in the installation position than in the installed position, and when the projections are in the installed position, the The retaining ring is rotated relatively when in the expanded installed position, and the retaining ring is located in the groove and rotatable with the rotatable shaft. The retained member is secured to the rotatable axis by the retaining ring, and defines an opening that receives the rotatable axis so that the retained member is rotatable with the rotatable axis, and is provided with a flap.
    Petition 870190133019, of 12/13/2019, p. 8/26
    4/12 retention that circumscribes the projections when in the installed position to prevent the projections from being forced apart by the centrifugal force so that the retaining ring can disassociate from the groove and includes a cutout portion that accommodates the projections when in the installation position.
    [008] In accordance with yet another embodiment of the present invention, a method for installing a retaining ring and a retained member on a rotatable axis provided with a groove includes the steps of providing the retaining ring which includes projections provided with an installed position and an installation position, in which a distance between the projections is greater when in the installation position than in the installed position, provision of a retained member which is provided with a retaining tab which is adapted to circumscribe the projections when in the installed position so that the retaining tab prevents the projections from being forced apart by the centrifugal force so that the retaining ring can disassociate from the groove and includes a cutout portion that accommodates the projections when in the position of installation, installation of the retaining member around the rotatable axis so that the retained member is rotatable with the i rotatable positioning of the retaining ring projections within the cutout portion of the retained member and forcing the separate projections to provide the projections with the installation position, snap fitting of the retaining ring in the groove so that the retention is rotatable with the rotatable axis and the retaining ring secures the member retained for the axis
    Petition 870190133019, of 12/13/2019, p. 9/26
    5/12 rotatable, and rotation of the retaining ring relative to the installation position to provide the installed position, where the retaining tab circumscribes the projections so that the retaining tab prevents the projections from being forced apart by the centrifugal force so that the retaining ring can disassociate from the groove.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Figure 1 represents a retaining ring retention system, partially in section, in accordance with an embodiment of the present invention;
    Figure 2 represents a top-down perspective view of a retaining ring in accordance with an embodiment of the present invention;
    Figure 3 represents a top-down perspective view of a member retained in accordance with an embodiment of the present invention;
    Figure 4 represents a top-down perspective view of a retained member receiving a rotatable axis in accordance with an embodiment of the present invention;
    Figure 5 represents a top-down perspective view of a retained member receiving a rotatable shaft and a protruding retaining member shown in an installation position of an embodiment of the present invention;
    Figure 6 represents a top-down perspective view of a retained member receiving a rotatable axis and a retaining member engaged in a groove on the rotatable axis of an embodiment of the present invention;
    Petition 870190133019, of 12/13/2019, p. 10/26
    6/12 and
    Figure 7 represents a top-down perspective view of a retained member receiving a rotatable shaft and a retaining member with projections shown in an installation position for an embodiment of the present invention.
    DETAILED DESCRIPTION OF THE INVENTION
    [009] Figure 1 represents an embodiment of the present invention of a retaining ring retaining system (10) provided with a rotatable shaft (20) that includes a groove (21), a retaining ring (30), and a retained member (40). In the presently preferred embodiment, the rotatable axis (20) is a component of a vehicle drive train (15) and the retained member (40) is a pressure washer (clamping); however, those of ordinary skill in the art will appreciate that it is within the scope of the present embodiment of the present invention to employ the principles of the present embodiment of the present invention in conjunction with any type of rotatable axis, including rotatable axes for use outside rail trains. vehicle traction, and any type of retained limb, including, but not limited to gears, pulleys, and pulleys.
    [010] Turning now to Figure 1 and Figure 2, the retaining ring (30) of the present embodiment of the present invention is shown provided with a geometric axis (31), a central opening (32), defined by a substantially annular portion (33), and first projection portion and second projection portion (34, 35). As shown in Figure 2, the first protrusion portion and the
    Petition 870190133019, of 12/13/2019, p. 11/26
    7/12 the second projection portion (34, 35) extends radially outwards relative to the geometry axis (31) by a distance (Di) and the substantially annular portion (33) extends radially outwards relative to the geometry axis ( 31) over a distance (D2). As shown in Figure 2, the distance (Di) is preferably greater than the distance (D2).
    [011] Turning now to Figure 3, the retained member (40) of the present embodiment of the present invention is shown provided with a central opening (42) defined by a substantially annular portion (43) and a retaining flap (45) ). As shown in Figure 1, the opening (42) is sized to receive the rotatable axis (20), so that the retained member (40) rotates with the rotatable axis (20). The retained member (40) can be configured to rotate with the rotatable axis (20) because it is provided with internal grooves (not shown) that are complementary to grooves (not shown) on the rotatable axis (20) or through adjustment of friction or interference, for example. As shown in Figure 1 and Figure 3, the retaining tab (45) can be located on the periphery of the substantially annular portion (43) and extends generally orthogonal from a substantially flat face of the substantially annular portion (43). The retaining tab (45) is preferably semicircular in configuration and includes at least a cutout portion (48) which, in the presently illustrated embodiment of the present invention, separates the first and second ends (46, 47) from the retaining tab (45 ) and is substantially coplanar with the portion substantially
    Petition 870190133019, of 12/13/2019, p. 12/26
    8/12 annul (43).
    [012] In accordance with an aspect of the present embodiment of the present invention, the retaining ring (30) is configured to be installed in the groove (21) that extends circumferentially around the rotatable axis (20). As shown, by comparing Figure 5 and Figure 6, the projection portions (34, 35) are provided with an installed position (37) (Figure 7) and an installation position (38) (Figure 5). Also shown, when in the installation position (38), a distance (D3) between the projections (34, 35) is greater than a distance (D4) between the projections (34, 35), when in the installed position (37) .
    Also shown, relative to the installation position (38), the retaining ring (30) is rotated when in the installed position (37). As shown in Figure 1 and Figure 7, when the projections (34, 35) are in the installed position (37), the retaining ring (30) is located in the groove (21) on the rotatable axis (20), and the projections (34, 35) are circumscribed by the retaining flap (45) of the retained member (40). Those of ordinary skill in the art will appreciate that a retaining ring tool (not shown), such as retaining ring clamps (not shown), can engage openings (36) (Figure 2) in the projections (34, 35) and force the separate projections (34, 35) to expand the size of the central opening (32) so that the retaining ring (30) is capable of being positioned to the installation position (38), where the retention (30) can be splined around the rotatable axis (20) and snapped into the groove (21).
    [013] In line with another aspect of this
    Petition 870190133019, of 12/13/2019, p. 13/26
    9/12 In the embodiment of the present invention, the retaining ring (30) is configured to secure the retained member (40) on the rotatable axis (20). In accordance with yet another aspect of the present embodiment of the present invention, the retaining ring (30) and retained member (40) are configured to cooperate to prevent centrifugal force generated by the rotatable axis (20) from forcing the projections (34) , 35) separated and expand the size of the central opening (32) in a way that allows the retaining ring (30) to disassociate from the groove (21) and potentially disassociate from the rotatable axis (20) .
    [014] Turning now to Figures 4 - 7, the preferred installation method for the retaining ring retaining system (10) will now be described. As shown in Figure 4, first the retained member (40) is installed by being slid around the rotatable axis (20) until it is seated on a bulkhead (23), which can be provided on another rotatable member (50), a example of which is shown in Figure 1, or on the rotatable axis (20) itself. In the present embodiment of the present invention, the retained member (40) is configured to rotate with the rotatable axis (20). As shown in Figure 1, when the retained member (40) is seated on the bulkhead (23), the retaining tab (45) is preferably coplanar with the groove (21) and preferably extends radially outward from the groove ( 21).
    [015] As shown in Figure 5 and Figure 6, after the retained member (40) is installed on the rotatable axis (20), the retaining ring (30) is then installed by being slid around the axis rotatable
    Petition 870190133019, of 12/13/2019, p. 14/26
    10/12 (20), which is complemented by forcing the projections (34, 35) apart so that the retaining ring (30) is in the installation position (38). As shown in Figure 1 and Figure 6, when the retaining ring (30) is coplanar with the groove (21) and the projections (34, 35) are no longer forced apart, the retaining ring (30) fits into the groove (21). During this step, as shown in Figure 5 and Figure 6, the projections (34, 35) are positioned within the cutout portion (48) of the retaining tab (45), which accommodates the spaced apart projection portions (34, 35) when in the installation position (38). Those of ordinary skill in the art will appreciate that once the retaining ring (30) has been engaged into the groove (21), the retaining ring (30) secures the retained member (40) on the rotatable axis (20).
    [016] Turning now to Figure 7, in order to prevent the centrifugal force generated by the rotatable axis (20) from forcing the separate projections (34, 35) and expanding the size of the central opening (32), way that the retaining ring (30) could disassociate from the groove (21) and potentially disassociate from the rotatable axis (20), the retaining ring (30) being rotated so that the projections (34, 35 ) are in the installed position (37) and no longer in any way, located within the cutout portion (48) of the retained member (40). As shown, upon rotation of the retaining ring (30) to the installed position (37), the projections (34, 35) are positioned so that the retaining tab (45) circumscribes the projections (34, 35) so that the flap
    Petition 870190133019, of 12/13/2019, p. 15/26
    11/12 retention (45) acts as a limit that prevents the projections (34, 35) from being forced apart by centrifugal force in a way that could otherwise result in expansion in the size of the central opening (32) so that the retaining ring (30) disassociates from the groove (21). As the retaining ring (30) and the retaining member (40) are both rotatable with the rotatable shaft (20) at the same speed, the retaining ring (30) will remain in the installed position (37) shown in Figure 7 until it is desired to remove the retaining ring (30), which can be supplemented by manually rotating the retaining ring (30) to the position shown in Figure 6.
    [017] The present description represents specific examples to teach those specialized in the state of the art how to make and use the best way of carrying out the present invention. For the purpose of teaching inventive principles, some conventional aspects have been simplified or omitted. The detailed descriptions of the embodiments presented above are not exhaustive descriptions of all the embodiments contemplated by the inventors to be within the scope of the present invention. Those skilled in the art will appreciate variations from these examples that fall within the scope of the present invention.
    [018] Persons skilled in the state of the art will recognize that certain elements of the previously described embodiments can be variously combined.
    Petition 870190133019, of 12/13/2019, p. 16/26
    12/12 or eliminated to create additional embodiments, and such additional embodiments fall within the scope and teachings of the present invention. It will also be apparent to those of ordinary skill in the art that the previously described embodiments can be combined in whole or in part to create additional embodiments within the scope and teachings of the present invention. Accordingly, while specific embodiments of, and examples for, the present invention are described herein for illustrative purposes, several equivalent modifications are possible within the scope of the present invention, as those of ordinary skill in the relevant art will recognize. Accordingly, the scope of the present invention is determined from the accompanying and equivalent claims thereof.
    权利要求:
    Claims (3)
    [1]
    1. Method for installing a retaining ring (30) and a retained member (40) on a rotatable axis (20) provided with a groove (21), comprising the step of:
    - provide the retaining ring (30) which includes projections (34, 35) provided with an installed position and an installation position, where:
    - a distance between the projections (34, 35) is greater when in the installation position than in the installed position;
    characterized by the method additionally understanding the steps of:
    - providing a retained member (40) which is provided with a semicircular retaining tab (45) which:
    - it is adapted to circumscribe the projections (34, 35) when in the installed position so that the retaining flap (45) prevents the projections (34, 35) from being forced apart by the centrifugal force so that the retaining ring (30) can disassociate from the slot (21); and
    - includes a cutout portion (48), which separates the first end (46) and second end 947) from the retaining tab (45) and accommodates the projections (34, 35) when in the installation position;
    - installing the retaining member (40) around the rotatable axis (20) so that the retained member (40) is rotatable with the rotatable axis (20);
    - position the projections (34, 35) on the
    Petition 870190133019, of 12/13/2019, p. 18/26
    [2]
    2/2 retention (30) within the cutout portion (48) of the retained member (40) and force the separate projections (34, 35) to provide the projections (34, 35) with the installation position;
    - fit the retaining ring (30) into the groove (21) so that the retaining ring (30) is rotatable with the rotatable shaft (20) and the retaining ring (30) secures the retained member (40) to the shaft rotatable (20);
    - rotate the retaining ring (30) relative to the installation position to provide the installed position, where the retaining tab (45) circumscribes the projections (34, 35) in such a way that the retaining tab (45) prevents the projections (34, 35) will be forced apart by the centrifugal force so that the retaining ring (30) can disassociate from the groove (21).
    2. Method for installing the retaining ring (30) and the retained member (40) on the rotatable axis (20) provided with the groove (21), according to claim 1, characterized by the fact that the retained member ( 40) is a pressure washer.
    [3]
    3. Method for installing the retaining ring (30) and the retained member (40) on the rotatable axis (20) provided with the groove (21), according to claim 1, characterized by the fact that the rotatable axis ( 20) is a component of a vehicle drive train.
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    法律状态:
    2019-08-20| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
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    申请号 | 申请日 | 专利标题
    PCT/US2012/069429|WO2014092708A1|2012-12-13|2012-12-13|Retaining ring retention system and method|
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