Self-locking installation system

Abstract

An installation system, a fixture (50), and a method for installation onto a structural component (14). The installation system includes a bracket (10, 210, 410) having an installation protrusion (30, 230, 430), the installation protrusion (30, 230, 430) having an installation opening (40, 240, 440) extending between side walls (36, 236, 436) of the installation protrusion (30, 230, 430). The fixture (50, 150, 250, 350, 450) has an installation portion (52, 252, 452) and a clamping portion (54, 254, 454), the installation portion (52, 252, 452) having a protrusion receiving opening (70, 170, 280, 478) for receiving the installation protrusion (30, 230, 430) therein. A locking mechanism (78, 178, 288, 464) extends from the clamping portion (54, 254, 454), the locking mechanism (78, 178, 288, 464) having a fastening portion (83, 88, 183, 290, 512) movable between an unlocked position and a locked position.

Description

Technical Field

[0001] The present invention generally relates to self-locking clamps, mounting systems, and methods for installing clamps without tools or hardware. More particularly, the present invention relates to a self-locking clamp, mounting system, and method for protecting cables, electrical conduits, pneumatic lines, hydraulic lines, and other similar components mounted on a structural member such as a metal beam. Background Art

[0002] The interior structures of vehicles, aircraft, and buildings use structural members such as beams, which are formed with openings for components such as cables, electrical conduits, etc. to pass through, and these components extend through the openings in the structural members. These openings are formed in various ways, such as by stamping, cutting, punching, etc., and typically have sharp edges that can wear or cut the cable insulation or damage the components extending through the beam openings. Therefore, it is common practice to protect the components by providing brackets or bushings that are fitted into the openings to cover their edges.

[0003] Various types of bushings are known for this purpose. One known structure consists of two parts that snap together when the bushing is installed in the beam opening. This type of bushing has several drawbacks and deficiencies, including the need to manufacture and store multiple parts, as well as the time and inconvenience of handling and assembling the bushing parts on site.

[0004] One-piece bushings are known, but have certain problems and drawbacks. For example, some traditional one-piece bushings are difficult to insert into the openings. This is especially true when the bushing is configured to resist displacement as a cable or other component is pulled through the bushing.

[0005] Another common drawback of the prior art multi-piece and one-piece bushings is that their design does not allow a single bushing to accommodate structural members of various different thicknesses. Since structural members are made of different thicknesses, a supply of bushings of different sizes must be maintained, which can be selected and used according to the column structure.

[0006] Therefore, it is beneficial to provide such a self-locking clamp, mounting system, and method that overcomes the problems of the prior art by providing an easily installed system that can be used with structural members of different thicknesses and can be correctly installed on the structural member in a fixed orientation. It is also beneficial to provide a self-locking, tool-free, hardware-free attachment system that allows the clamp to be mounted on the bracket of the mounting system.

[0007] The solution is provided by a mounting system including a bracket and a clamp. The bracket has mounting protrusions with mounting openings extending between the side walls of the mounting protrusions. The clamp has a mounting portion and a clamping portion, the mounting portion having a protrusion receiving opening for receiving the mounting protrusion. A locking mechanism extends from the clamping portion and has a fastener movable between an unlocked position and a locked position. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In conjunction with the accompanying drawings, other features and advantages of the present invention will become apparent from the following more detailed description of illustrative embodiments, which illustrate the principles of the present invention by way of example.

[0009] Figure 1 is a perspective view of an exemplary bracket mounted in an opening of a structural member.

[0010] Figure 2 is a perspective view of an exemplary clamp of the present invention relative to the bracket in an initial or pre-mounted position.

[0011] Figure 3 is along Figure 2 a cross-sectional view of the clamp and the bracket taken along line 3-3.

[0012] Figure 4 is of the exemplary clamp shown relative to the bracket in a partially installed position Figure 2 in a perspective view.

[0013] Figure 5 is along Figure 4 a cross-sectional view of the clamp and the bracket taken along line 5-5.

[0014] Figure 6 is of the exemplary clamp shown relative to the bracket in a fully installed position Figure 2 in a perspective view.

[0015] Figure 7 is along Figure 6 a cross-sectional view of the clamp and the bracket taken along line 7-7, showing the force applied to the clamp to allow removal of the clamp from the bracket.

[0016] Figure 8 is a perspective view of another exemplary clamp of the present invention shown relative to the bracket in an initial or pre-mounted position.

[0017] Figure 9 is of the exemplary clamp shown relative to the bracket in a partially installed position Figure 8 in a perspective view.

[0018] Figure 10 is of the exemplary clamp shown relative to the bracket in a fully installed position Figure 9 in a perspective view.

[0019] Figure 11 is a cross-sectional view of a clamp and a bracket taken along line 11-11 Figure 10 of the same.

[0020] Figure 12 is a perspective bottom view of the clamp, with the lock disassembled therefrom.

[0021] Figure 13 is a perspective view of an exemplary bracket installed in an opening of a structural member.

[0022] Figure 14 is a perspective view of an exemplary cable inserted through an opening of a structural member and a bracket.

[0023] Figure 15 is a perspective view of a cable inserted through an opening of a structural member and through a bracket, with a cable tie extending around the cable.

[0024] Figure 16 is a perspective view of a cable inserted through an opening of a structural member and through a bracket, with an exemplary clamp of the present invention in an initial or pre-installed position.

[0025] Figure 17 is a perspective view of a cable inserted through an opening of a structural member and through a bracket, with the shown clamp moved onto the cable.

[0026] Figure 18 is a perspective view of a cable inserted through an opening of a structural member and through a bracket, with the clamp moved to engage with the bracket and the locking mechanism of the mounting portion of the clamp in an unlocked position.

[0027] Figure 19 is Figure 18 a cross-sectional view of the shown clamp taken along line 19-19.

[0028] Figure 20 is a perspective view of a cable inserted through an opening of a structural member and through a bracket, with the locking mechanism of the mounting portion of the clamp moved to a locked position on the bracket.

[0029] Figure 21 is Figure 20 a cross-sectional view of the shown clamp taken along line 21-21.

[0030] Figure 22 is a perspective front view of a cable inserted through an opening of a structural member and through a bracket, with the clamping portion of the clamp moved to a clamping position on the cable and the locking mechanism of the clamping portion of the clamp in an unlocked position.

[0031] Figure 23Is a front perspective view of a cable inserted through an opening in a structural member and a bracket, where the clamping portion of the clamp has moved to a clamping position on the cable, and the locking mechanism of the clamping portion of the clamp is in a locked position.

[0032] Figure 24 Is a perspective view of another cable inserted through an opening in a structural member and through a bracket, where another exemplary clamp of the present invention is in an initial or pre-installed position.

[0033] Figure 25 Is Figure 24 A front perspective view of the cable shown, the cable being inserted through an opening in a structural member and a bracket, with the mounting portion of the clamp moved to a locking position on the bracket and the clamping portion of the clamp fixed in a clamping position on the cable.

[0034] Figure 26 Is a perspective view of a cable inserted through an opening in a structural member and through a bracket, where the clamp is in an initial or pre-installed position.

[0035] Figure 27 Is a perspective view of a cable inserted through an opening in a structural member and through a bracket, where the shown clamp has moved onto the cable.

[0036] Figure 28 Is a perspective view of a cable inserted through an opening in a structural member and through a bracket, where the clamp has moved to engage with the bracket and the clamp is in an unlocked position.

[0037] Figure 29 Is a perspective view of a cable inserted through an opening in a structural member and through a bracket, where the clamp has moved to a locking position on the bracket.

[0038] Figure 30 Is a front perspective view of a cable inserted through an opening in a structural member and a bracket, where the clamp has moved to a clamping position on the cable.

[0039] Figure 31 Is a front perspective view of a cable inserted through an opening in a structural member and through a bracket, where the clamp is fixed in a clamping position on the cable.

[0040] Figure 32 Is the clamp that has moved to engage with Figure 29 The shown bracket, with the clamp in a locked position.

[0041] Figure 33 Is Figure 32 A cross-sectional view of the shown clamp.

[0042] Figure 34 Is Figure 31 A midline cross-sectional view of the shown clamp, where the clamp is in a locked position.

[0043] Figure 35 is a cross-sectional view of a clamp similar to Figure 32 wherein the clamp is shown between an unlocked position and a locked position.

[0044] Figure 36 is a cross-sectional view of a clamp similar to Figure 32 wherein the clamp is in an unlocked position.

[0045] Figure 37 is a perspective view of a clamp moved to engage with a bracket as shown in Figure 28 wherein the clamp is shown in an unlocked position.

[0046] Figure 38 is a perspective view of an optional exemplary bracket for use with the clamp.

[0047] Figure 39 is Figure 38 a perspective view of the bracket showing an exemplary clamp in an initial or pre-installed position.

[0048] Figure 40 is a side view of the clamp mounted on the bracket Figure 39

[0049] Figure 41 is Figure 38 a perspective view of the bracket wherein a second exemplary clamp is in an initial or pre-installed position.

[0050] Figure 42 is a side view of the clamp mounted on the bracket Figure 41 DETAILED DESCRIPTION

[0051] One embodiment relates to a mounting system including a bracket and a clamp. The bracket has a mounting projection having a mounting opening extending between side walls of the mounting projection. The clamp has a mounting portion and a clamping portion. The mounting portion has a projection receiving opening therein for receiving the mounting projection. A locking mechanism extends from the clamping portion and has a fastener movable between an unlocked position and a locked position.

[0052] One embodiment relates to a mounting system for mounting to a structural member, the mounting system including a bracket and a clamp. The bracket has a mounting projection having a mounting opening extending between side walls of the mounting projection. The clamp has a mounting portion and a clamping portion. The mounting portion has a projection receiving opening for receiving the mounting projection of the bracket therein. The mounting portion has a fastening opening extending through a side wall of the mounting portion. A locking mechanism is provided on the clamping portion. The locking mechanism has a fastening portion rotatable between a locked position and an unlocked position, wherein in the locked position, the fastening portion is located in the mounting opening and in the unlocked position, the fastening portion is removed from the mounting opening.​​

[0053] One embodiment relates to a clamp for use with a bracket. The clamp includes a clamping portion and a mounting portion. The mounting portion has a protrusion receiving opening that receives a protrusion extending from the bracket. The mounting portion has a fastening opening that extends through a sidewall of the mounting portion into the protrusion receiving opening. A locking mechanism is provided on the clamping portion and has a fastening portion that is rotatable between a locked position and an unlocked position. In the locked position, the fastening portion is located in a mounting opening of the bracket, and in the unlocked position, the fastening portion is removed from the mounting opening of the bracket.

[0054] One embodiment relates to a method of an installation system for protecting components near a structural member. The method includes: mounting a bracket on the structural member, the bracket having a mounting protrusion with a mounting opening; fixing the bracket to the structural member to prevent the bracket from rotating relative to the structural member; positioning a clamp on the mounting protrusion of the bracket, the clamp having a clamping portion and a mounting portion, the mounting portion having a protrusion receiving opening that receives a protrusion extending from the bracket, and the mounting portion having a fastening opening that extends through a sidewall of the mounting portion into the protrusion receiving opening; and rotating a fastening portion of the mounting portion of the clamp to a locked position, in which the fastening portion is located in the mounting opening, to fix the clamp to the bracket.

[0055] As Figure 1 shown, an exemplary bracket 10 is located in an opening 12 of a structural member 14. The bracket 10 can be, for example, a polymer material, a thermoplastic material, a composite material, or a metal. The opening 12 can be a weight reduction hole or other type of opening. The structural member 14 can be, but is not limited to, a frame or bulkhead of a vehicle, a beam or bulkhead of an aircraft, or a beam of a building. The opening 12 can be formed in various ways, such as by stamping, cutting, punching, etc. The opening 12 has a sidewall or edge that can wear or cut or damage components extending through the opening 12. These components can be, but are not limited to, cables, cable bundles, or pipes. The shown bracket 10 is illustrative because other embodiments of the bracket 10 can be used. For example, the bracket 10 can be, but is not limited to, an L-shaped bracket, an edge-mounted bracket, a rotary bonded mounting bracket, a rotary drive mounting bracket.

[0056] The bracket 10 includes a circular cross-section or grommet portion 20 that is fixed to the structural member 14 by a fastening member 22 (such as, but not limited to, a rivet). The bracket 10 is fixed to the structural member 14 to prevent the bracket 10 from rotating relative to the structural member 14. A flange 21 and a structural plate 23 extend from the grommet portion 20. The flange 21 cooperates with the structural member 14 to correctly position the grommet portion 20 relative to the structural member 14. The structural plate 23 cooperates with the fastening member 22 to hold the grommet portion 20 on the structural member 14. The axis of the opening 12 is perpendicular to the plane of the structural plate.

[0057] As Figure 1 shown, the grommet portion 20 has a circular cross-section. However, without departing from the scope of the present invention, the grommet portion 20 may have other configurations, such as but not limited to a rectangular-rounded cross-section. The shape and size of the grommet portion 20 are set to suitably fit the opening 12. The circular grommet portion 20 is formed to fit within the opening 12 of the structural member 14, and the grommet portion 20 has a sufficient length to ensure that the component does not contact the sidewall of the structural member 14. The bracket 10 is configured to support the components and protect them from damage by the sidewall or edge of the structural member 14 to which the bracket 10 is mechanically fixed.

[0058] As Figure 1 shown, the mounting projection or protrusion 30 extends from the grommet portion 20. The protrusion 30 has a top wall or cable support wall 32, and opposing bottom wall 34 and sidewalls 36 that extend between the cable support wall 32 and the bottom wall 34. The cable support wall 32 is positioned in line with the inner surface 38 of the grommet portion 20. The fastening or mounting opening 40 extends through the protrusion 30 in a direction generally parallel to the cable support wall 32. The opening 40 extends through the sidewalls 36. As Figure 3 、 5 and 7 show, the opening 40 has a first or front wall 42 and a second or rear wall 44.

[0059] Referring Figures 2 to 7 , a cable clamp 50 can be used to secure the components to the bracket 10 and the structural member 14. In the illustrative embodiment shown, the clamp 50 has a mounting portion 52 and a clamping portion 54. The clamping portion 54 has a fixed clamping arm 56 and a movable clamping arm 58 that pivots about a pivot member 60 between an open position and a closed or clamped position. When the component is located between the fixed clamping arm 56 and the movable clamping arm 58 and the movable clamping arm 58 is moved to the closed position, the movable clamping arm 58 engages the component. The fixed clamping arm 56 extends from and is attached to the mounting portion 52. In the illustrative embodiment, the clamping portion 54 is a P-shaped clamp, but other types of clamps may also be used. P-shaped clamps are described in U.S. Patent Application Publications 2018 / 0273500 and 2017 / 0146154, the entire contents of which are incorporated herein by reference.

[0060] The clamping portion 54 can be configured to engage components of different sizes. For example, when in the closed or clamped position, the clamping portion can have the following diameter ranges: 3.175 - 6.35 mm; 6.35 - 9.525 mm; 9.525 - 12.7 mm; 12.7 - 15.875 mm; 15.875 - 19.05 mm; 19.05 - 22.2 mm; or 22.2 - 25.4 mm.

[0061] As Figure 3 , 5 and as shown in FIG. 7, the mounting portion 52 has a front wall 63, a rear wall 65, and side walls 68. A projection receiving opening 70 extends through the mounting portion 52 from one side wall 68 to the opposite side wall 68.

[0062] The opening 70 has a front wall or a first wall 72. The opening is sized to receive the projection 30 therein. The opening 70 is configured to have a similar but slightly larger configuration than the projection 30 to allow the projection 30 to be inserted into the opening 70 while preventing undesired movement of the clamp 50 relative to the bracket 10.

[0063] A lock receiving cavity 76 is provided in the front wall 63 of the mounting portion 52. The lock receiving cavity 76 extends from one side wall 68 to the opposite side wall 68. A fixed member receiving opening or cavity 73 extends through the side wall 68 into the opening 70.

[0064] As Figure 3 , 5 and as shown in FIG. 7, a locking mechanism 78 is located within the lock receiving cavity 76. The locking mechanism 78 has a first locking arm 79 that extends from a transverse member 80 held within the lock receiving cavity 76. The first locking arm 79 has a first engaging portion 81, a first pivot portion 82, and a first fixed member or portion 83. The first pivot portion 82 has a first opening 84 provided therein. The first fastening portion 83 has a first fastening surface 77 provided at the free end of the first fastening portion 83, which free end is spaced apart from the first pivot portion 82. The first fastening portion 83 has a first cam surface 94 extending between the first fastening surface 77 and the first pivot portion 82.

[0065] The locking mechanism 78 has a second locking arm 85 that extends from the transverse member 80 held within the lock receiving cavity 76. The second locking arm 85 has a second engaging portion 86, a second pivot portion 87, and a second fastening portion 88. The second pivot portion 87 has a second opening 89 provided therein. The second fastening portion 88 has a second fastening surface 90 provided at the free end of the second fastening portion 88, which free end is spaced apart from the second pivot portion 87. The second fastening portion 88 has a second cam surface 95 extending between the second fastening surface 90 and the second pivot portion 87. The second locking arm 85 has an overstress protection member 91 extending from the second engaging portion 86 ( Figure 7 ).

[0066] The first opening 84 and the second opening 89 are inserted onto the post 92 of the mounting portion 52 to fix the locking mechanism 78 to the mounting portion 52. In addition, the transverse member 80 positioned in the lock receiving cavity 76 further holds the locking mechanism 78 in place on the mounting portion 52. The positioning of the post 92 in the openings 84, 89 allows the fastening portions 83, 88 to pivot or rotate about the post 92. The positioning of the transverse member 80 in the lock receiving cavity 76 prevents the locking mechanism from moving in a direction Figure 3 ) that is aligned with the longitudinal axis 93 of the mounting portion 52 (

[0067] However, the transverse member 80 is free to move in a direction transverse to the longitudinal axis 93 of the mounting portion 52 within the lock receiving cavity 76. Figure 3 The first fastening portion 83 is configured to rotate about the corresponding post 92 between a first or unlocked position (as Figure 7 shown) and a second or locked position (as Figure 3 shown). The second fastening portion 88 is configured to rotate about the other corresponding post 92 between a first or unlocked position (as Figure 7 shown) and a second or locked position (as

[0068] The mounting of the clamp 50 on the mounting projection 30 of the bracket 10 is as Figures 3 to 7 shown. Before the clamp 50 engages the mounting projection 30, the locking mechanism 78 is in the Figure 2 and 3 shown positions. In this position, a portion of the first cam surface 94 and the first fastening surface 77 of the first fastening portion 83 extends through the fixed member receiving cavity 73 and into the projection receiving opening 70. The construction of the locking mechanism 78 and the cooperation of the first pivot portion 82 with the post 92 elastically hold the said portion of the first cam surface 94 and the first fastening surface 77 of the first fastening portion 83 in the initial position.

[0069] Similarly, a portion of the second cam surface 95 and the second fastening surface 90 of the second fastening portion 88 extends through the fixed member receiving cavity 73 and into the projection receiving opening 70. The construction of the locking mechanism 78 and the cooperation of the second pivot portion 87 with the post 92 elastically hold the said portion of the second cam surface 95 and the second fastening surface 90 of the second fastening portion 88 in the initial position.

[0070] As Figure 4 and Figure 5As shown, when the fixture 50 moves onto the mounting projection 30 of the bracket 10, the mounting projection 30 moves into the projection receiving opening 70. When this occurs, the side walls 36 of the mounting projection 30 engage the first cam surface 94 and the second cam surface 95, causing the cam surfaces 94, 95 and the fastening portions 83, 88 to elastically pivot about the pivot portions 82, 87 and the post 92. This allows the fixture 50 to continue to be inserted onto the mounting projection 30 of the bracket 10.

[0071] Continue to insert until the mounting projection 30 engages or approaches the wall 72 of the projection receiving opening 70, as Figure 6 and 7 shown. In this position, the cam surfaces 94, 95 are positioned in line with the fastening or mounting opening 40 of the mounting projection 30. This allows the cam surfaces 94, 95 and the fastening portions 83, 88 to pivot about the pivot portions 82, 87 and allows the post 92 to elastically return towards their stress-free or initial position. As Figure 7 shown, when the fastening portions 83, 88 are located in the mounting opening 40, the fastening surfaces 77, 90 engage or are close to the first or front wall 42 of the opening 40. In this position, the fixture 50 is fixed to the mounting projection 30 of the bracket 10.

[0072] As Figure 7 shown, the locking mechanism 78 can prevent the fixture 50 from being accidentally removed from the mounting projection 30 of the bracket 10. If a force F1 is applied to the fixture 50, resultant forces F2 and F3 will be applied to the fastening surfaces 77, 90 of the fastening portions 83, 88 of the locking mechanism 78. Due to the arcuate configuration of the fastening surfaces 77, 90, the application of the force causes the fastening surfaces 77, 90 and the fastening portions 83, 88 to pivot further into the mounting opening 40, thereby preventing the fixture 50 from being undesirably removed from the bracket 10.

[0073] To remove the fixture 50 from the mounting projection 30 of the bracket 10, the operator or user applies forces F4 and F5 to the first engaging portion 81 of the first locking arm 79 and the second engaging portion 86 of the second locking arm 85. The application of forces F4 and F5 causes the locking arms 79, 85 to move inwards towards each other. This in turn causes the fastening surfaces 77, 90 and the fastening portions 83, 88 to pivot outwards about the pivot portions 82, 87 and the post 92, causing the fastening surfaces 77, 90 to move out of the opening 40. As the fastening surfaces 77, 90 are removed from the opening 40, the fixture 50 can be removed from the mounting projection 30 of the bracket 10.

[0074] The first locking arm 79 and the second locking arm 85 include two pivot self-locking lock members, which ensure that when the locking arms 79, 85 are in the locked state, the cable clamp 50 will not vibrate loose from the bracket 10. Having two self-locking locking arms 79, 85 adds a redundant element, because either of the two pivot self-locking locking arms 79, 85 can individually hold the clamp 50 firmly to the bracket 10. In addition, when the locking arms 79, 85 are in the locked position, due to their designed geometry, they will self-tighten or self-lock.

[0075] The locking arms 79, 85 and the locking mechanism 78 allow the user to install the clamp 50 by simply pushing the clamp 50 onto the mounting protrusion 30 of the bracket 10. The locking arms 79, 85 of the locking mechanism 78 automatically lock in place, thus simplifying the installation procedure and eliminating the risk of forgetting to lock the clamp in place.

[0076] The locking mechanism 78 and the locking arms 79, 85 are ergonomically and spatially designed. The user only needs to squeeze the first engaging portion 81 and the second engaging portion 86 of the locking mechanism 78 and pull the clamp 50 away from the bracket 10. Squeezing the first engaging portion 81 and the second engaging portion 86 causes the two pivot locking arms 79, 85 to move out of the locked position and allows the removal of the clamp 50.

[0077] Figures 8 to 12 An alternative embodiment of the clamp 150 is shown. As Figure 11 and 12 shown, the locking mechanism 178 has a locking arm 179, and the locking arm 179 has an engaging portion 181, a pivot portion 182, and a fixing member or portion 183. The pivot portion 182 has an opening 184 provided therein. The fastening portion 183 has a fastening surface 177 provided at the free end of the fastening portion 183, and the free end is spaced apart from the pivot portion 182.

[0078] The first opening 184 is inserted onto the post 192 of the mounting portion 152 to hold the locking mechanism 178 in place on the mounting portion 152. The positioning of the post 192 in the opening 184 allows the fastening portion 183 to pivot or rotate around the post 192. The fastening portion 183 is configured to rotate around the post 192 between a first or unlocked position (as Figure 9 shown) and a second or locked position (as Figure 10 shown).

[0079] Figures 8 to 10 The installation of the clamp 150 on the mounting protrusion 30 of the bracket 10 is shown. Before the clamp 150 engages the mounting protrusion 30, the locking mechanism 178 is in Figure 8The position shown. At this position, the first fastening surface 177 of the fastening portion 183 does not extend through the fastening member receiving cavity 173 and does not extend into the protrusion receiving opening 170. The cam surface 194 and a portion of the fixing surface 177 of the fixing portion 183 are in the initial position.

[0080] Continue to insert the clamp 150 into the bracket 10 until the clamp 50 engages or approaches the bracket, as Figure 9 and 10 shown. At this position, the locking mechanism 178 rotates from the Figure 9 position shown to the Figure 10 position shown. When this occurs, the cam surface 194 positioned in line with the fastening or mounting opening 40 of the mounting protrusion 30 pivots about the pivot portion 182 and the post 192 to move to the locking position, in which the fastening portion 183 is positioned in the mounting opening 40. At this position, the fastening surface 177 engages or approaches the first or front wall 42 of the opening 40, thereby fixing the clamp 150 to the mounting protrusion 30 of the bracket 10.

[0081] As Figure 11 shown, the locking mechanism 178 prevents the clamp 150 from being accidentally removed from the mounting protrusion 30 of the bracket 10. If a force F6 is applied to the clamp 150, a resultant force F7 will be applied to the fastening surface 177 of the fastening portion 183 of the locking mechanism 178. Due to the arcuate configuration of the fastening surface 177, the application of the force causes the fastening surface 177 and the fastening portion 183 to pivot or rotate further into the mounting opening 40, thereby preventing the clamp 150 from being undesirably removed from the bracket 10.

[0082] To remove the clamp 150 from the mounting protrusion 30 of the bracket 10, the operator or user rotates the locking mechanism 178 from the Figure 10 position shown to the Figure 9 position shown. This causes the fastening surface 177 to move out of the opening 40. As the fastening surface 177 is removed from the opening 40, the clamp 150 can be removed from the mounting protrusion 30 of the bracket 10.

[0083] The clamps 50, 150 provide a reliable method for securely fastening components (such as cable bundles) in a tool - free and quick - installation manner, reducing the number of parts that need to be stored. In addition, the first locking mechanisms 78, 178 ensure that the clamps 50, 150 are fixed to the components and the bracket 10 and do not loosen due to vibration.

[0084] See Figure 13, shows an alternative bracket 210 in the opening 212 of the structural member 214. The bracket 210 can be, for example, a polymer material, a thermoplastic material, a composite material, or a metal. The opening 212 can be a weight reduction hole or other type of opening. The structural member 214 can be, but is not limited to, a frame or bulkhead of a vehicle, a beam or bulkhead of an aircraft, or a beam of a building. The opening 212 can be formed in various ways, such as by stamping, cutting, punching, etc. The opening 212 has sidewalls or edges that can wear or cut or otherwise damage the component 18 extending through the opening 212. The component 18 can be, but is not limited to, a cable, a cable bundle, or a pipe.

[0085] The bracket 210 includes a circular cross-section or grommet portion 220 that is fixed to the structural member 214 by fastening members 222 (such as, but not limited to, rivets). The bracket 210 is fixed to the structural member 214 to prevent the bracket 210 from rotating relative to the structural member 214. A flange 221 and a structural plate 223 extend from the grommet portion 220. The flange 221 cooperates with the structural member 214 to correctly position the grommet portion 220 relative to the structural member 214. The structural plate 223 cooperates with the fastening members 222 to hold the grommet portion 220 on the structural member 214. The axis of the opening 212 is perpendicular to the plane of the structural plate.

[0086] As Figure 13 shown, the grommet portion 220 has a circular cross-section. However, without departing from the scope of the present invention, the grommet portion 220 can have other configurations, such as, but not limited to, an oblong circular cross-section. The shape and size of the grommet portion 220 are set to appropriately fit the opening 212. The circular grommet portion 220 is formed to fit within the opening 212 of the structural member 214, and the grommet portion 220 has a sufficient length to ensure that the component 218 does not contact the sidewall of the structural member 214. The bracket 210 is configured to support the components 218 and protect them from damage by the sidewalls or edges of the structural member 214 to which the bracket 210 is mechanically fixed.

[0087] As Figure 13 shown, a protrusion or projection 230 extends from the grommet portion 220. The projection 230 has a top wall or cable support wall 232, and opposite facing bottom wall 234 and sidewalls 236 that extend between the cable support wall 232 and the bottom wall 234. The cable support wall 232 is positioned in line with the inner surface 238 of the grommet portion 220. Mounting openings 240 extend through the projection 230 in a direction generally parallel to the cable support wall 232. The openings 240 extend through the sidewalls 236.

[0088] As Figure 19 and 21As shown, the fastening protrusion 235 extends from the bottom wall 234 in a direction away from the cable support wall 232. The fastening protrusion 235 has a fastening shoulder or wall 237 that faces and is generally parallel to the surface of the structural member 214, although other configurations and orientations of the fastening protrusion 235 and the fastening shoulder 237 may be used.

[0089] As Figure 14 and 15 shown, the cable bundle or component 218 is inserted through the grommet portion 220 of the bracket 210, and the grommet portion 220 is located in the opening 212 of the structural member 214. The component 218 is positioned in contact with the inner surface 238 of the grommet portion 220 and the cable support wall 232 of the protrusion 230. As Figure 15 shown, a portion of the zip tie or strap 242 is located in the mounting opening 240 to correctly position and secure the mounting opening 240 relative to the protrusion 230. The zip tie or strap 242 is then wrapped around the component 218 and tightened to secure the component 218 to the protrusion 230 and the bracket 210. The zip tie or strap 242 operates in a known manner, such as, but not limited to, a push-on mounting type zip tie including a self-locking pin. In other embodiments, the zip tie or strap 242 is positioned in the mounting opening 240 before the component 218 is positioned in contact with the inner surface 238 of the grommet portion 220 and the cable support wall 32 of the protrusion 230.

[0090] Referring Figures 16 to 23 , an alternative cable clamp 250 can be used to secure the component to the bracket 210 and the structural member 214. In the illustrative embodiment shown, the clamp 250 has a mounting portion 252 and a clamping portion 254. The clamping portion 254 has a fixed clamping arm 256 and a movable clamping arm 258, and the movable clamping arm 58 pivots about a pivot member 260 between an open position and a closed or clamped position. When the component is located between the fixed clamping arm 256 and the movable clamping arm 258 and the movable clamping arm 258 is moved to the closed position, the movable clamping arm 258 mates with the component. The fixed clamping arm 256 extends from the mounting portion 252 and is attached to the mounting portion 52. In the illustrative embodiment, the clamping portion 254 is a P-shaped clamp, but other types of clamps may also be used. P-shaped clamps are described in U.S. Patent Application Publication Nos. 2018 / 0273500 and 2017 / 0146154, the entire contents of which are incorporated herein by reference.

[0091] The clamping portion 254 can be configured to mate with components of different sizes. For example, when in the closed or clamped position, the clamping portion can have the following diameter ranges: 3.175 - 6.35 mm; 6.35 - 9.525 mm; 9.525 - 12.7 mm; 12.7 - 15.875 mm; 15.875 - 19.05 mm; 19.05 - 22.2 mm; or 22.2 - 25.4 mm.

[0092] The mounting portion 252 has a top wall 274, a bottom wall 276, and side walls 278 extending between the top wall 274 and the bottom wall 276. A projection receiving opening 280 extends through the mounting portion 252 from one side wall 278 to the opposite side wall 278. The opening 280 is sized to receive the projection 230 therein. The opening 280 is configured to have a similar but slightly larger configuration than the projection 230 to allow the projection 230 to be inserted into the opening 280 while preventing undesired movement of the fixture 250 relative to the bracket 210.

[0093] As Figure 19 and 21 shown, a lock receiving cavity 282 is provided in the bottom wall 276 of the mounting portion 252. The lock receiving cavity 282 extends from one side wall 278 towards or to the opposite side wall 278. An enlarged recess 284 intersects the lock receiving cavity 282 near one side wall 278. The lock receiving cavity 282 has an opening 286 extending between the lock receiving cavity 282 and the projection receiving opening 280. The opening 286 is located near the opposite side wall 278. The enlarged recess 284 has a projection 285 extending into the recess 284.

[0094] As Figure 19 and 21 shown, a locking mechanism 288 is located within the lock receiving cavity 282. The locking mechanism 288 has a fastening portion engaging end 290 with a locking shoulder or wall 291 and an operator engaging end 922. The locking shoulder 291 of the fastening portion engaging end 290 engages the fastening shoulder 237 of the fastening projection 235 of the projection 230 to firmly position and hold the mounting portion 252 and the fixture 250 on the projection 230 of the bracket 210. The locking mechanism 288 is configured to rotate within the lock receiving cavity 282 between a first or unlocked position (as Figure 6 and 7 shown) and a second or locked position (as Figure 8 and 9 shown), which will be described more fully.

[0095] As Figure 16 shown, in operation, after the component 218 has been inserted through the bracket 210, the fixture 250 is provided near the component 218. As Figure 17As shown, the clamp 250 with the clamping portion 254 in the open position is then moved onto the component 218. In this position, the locking mechanism 288 is in the first or unlocked position.

[0096] The clamp 250 moves towards the structural member 214. As this occurs, the protrusion 230 of the bracket 210 enters the protrusion receiving opening 280 of the mounting portion 252 of the clamp 250, thereby allowing the clamp to move Figure 18 and 19 to the position shown.

[0097] When the clamp 250 is correctly positioned on the protrusion 230, the locking mechanism 288 rotates in the lock receiving cavity 282 from Figure 18 and 19 the unlocked position shown to Figure 20 and 21 the locked position shown. As the locking mechanism 288 rotates, the locking shoulder 291 of the fastening portion engaging end 290 of the locking mechanism 288 moves in the opening 284 from Figure 19 the unlocked position shown to Figure 21 the locked position shown. In the locked position, the locking shoulder 291 of the fastening portion engaging end 290 engages the fastening shoulder 237 of the fastening protrusion 235 of the protrusion 230. When the fastening shoulder 237 and the locking shoulder 291 engage, removal of the clamp 250 from the protrusion 230 of the bracket 210 is prevented.

[0098] As the rotation occurs, the operator engaging end 292 of the locking mechanism 288 also moves from Figure 18 the unlocked position shown to Figure 20 the locked position shown. In the locked position, the operator engaging end 292 is located within the enlarged recess 284, and the operator engaging end 292 engages and forms a friction engagement with the protrusion 285 extending into the recess 284, thereby providing an interference fit between the operator engaging end 292 and the protrusion 285. The interference fit prevents unwanted movement of the operator engaging end 292 and the locking mechanism 288 from the locked position to the unlocked position, such as, but not limited to, in an environment where the clamp 250 and the bracket 210 are exposed to vibration. Additionally, the positioning of the operator engaging end 292 within the enlarged recess 284 protects the operator engaging end 292 from unwanted and inadvertent engagement. The positioning of the operator engaging end 292 within the enlarged recess 284 also provides a visual and physical check to ensure that the clamp 250 is correctly positioned and secured to the bracket 210.

[0099] When the clamp 250 is correctly locked onto the bracket 210, the movable clamping arm 258 rotates to the closed position, as shown in Figure 22 and 23 the figures. In this position, the clamping portion 254 is fixed in the closed position, thereby fixing the component 218 within the clamp 250.

[0100] Figure 24 and Figure 25 shows an alternative embodiment of the clamp. In this embodiment, the clamp 350 is larger to accommodate a larger cable or component 318. However, the operation of the clamp 350 is the same as that described with respect to the clamp 250.

[0101] The clamps 250, 350 provide a reliable method for securely fastening components 218, 318 (such as cable bundles) in a tool - free and quick - installation manner, reducing the number of parts that need to be stocked. In addition, the locking mechanism 288 ensures that the clamps 250, 350 are fixed to the components 218, 318 and the bracket 210 and will not loosen due to vibration.

[0102] Referring to Figure 26 , an alternative bracket 410 in the opening 412 of the structural member 414 is shown. The bracket 410 can be, for example, a polymer material, a thermoplastic material, a composite material, or a metal. The opening 412 can be a weight - reducing hole or other type of opening. The structural member 414 can be, but is not limited to, a frame or bulkhead of a vehicle, a beam or bulkhead of an aircraft, or a beam of a building. The opening 412 can be formed in various ways, such as by stamping, cutting, punching, etc. The opening 412 has sidewalls or edges that can wear or cut or otherwise damage a component 18 extending through the opening 412. The component 18 can be, but is not limited to, a cable or a cable bundle.

[0103] The bracket 410 includes a circular cross - section or grommet portion 420, which is fixed to the structural member 414 by fastening members 422 (such as, but not limited to, rivets). The bracket 410 is fixed to the structural member 414 to prevent the bracket 410 from rotating relative to the structural member 414. A flange and a structural plate (not shown) are provided at the first end 424 of the grommet portion 420. The flange cooperates with the structural member 414 to correctly position the grommet portion 420 relative to the structural member 414. The structural plate cooperates with the fastening members 422 to hold the grommet portion 420 on the structural member 414. The axis of the opening 412 is perpendicular to the plane of the structural plate. The second end 426 of the grommet portion 420 does not include a flange.

[0104] The grommet portion 420 has a circular cross-section. However, without departing from the scope of the present invention, the grommet portion 420 may have other configurations, such as but not limited to a rectangular-oval cross-section. The shape and dimensions of the outer surface 428 of the grommet portion 420 are adapted to fit the opening 412 such that the outer surface 428 is adjacent to or engages the sidewalls of the opening 412. The circular grommet portion 420 is formed to fit within the opening 412 of the structural member 414, and the grommet portion 420 has a sufficient length to ensure that the component 18 does not contact the sidewalls of the structural member 414. The bracket 410 is configured to support the components 18 and protect them from damage by the sidewalls or edges of the structural member 414 to which the bracket 410 is mechanically fixed.

[0105] The protrusion or projection 430 extends from the second end 426 of the grommet portion 420 in a direction away from the first end 424. The projection 430 has a top wall or cable support wall 432, and opposing bottom wall 434 and sidewalls 436 that extend between the cable support wall 432 and the bottom wall 434. The cable support wall 432 is positioned in alignment with the inner surface 438 of the grommet portion 420. The mounting opening 440 extends through the projection 430 in a direction generally parallel to the cable support wall 432. The opening 440 extends through the sidewall 436.

[0106] Reference Figures 26 to 37 , an alternative cable clamp or fixture 450 may be used to secure the component 418 to the bracket 410 and the structural member 414. In the illustrative embodiment shown, the fixture 450 has a mounting portion 452 and a clamping portion 454. The clamping portion 454 has a fixed clamping arm 456 and a movable clamping arm 458 that pivots about a pivot member 460 between an open position and a closed or clamped position. The movable clamping arm 458 has a compressible or resilient member 462 disposed on an inner portion of the movable clamping arm 458. The compressible or resilient member 462 cooperates with the component 418 when the component 418 is positioned between the fixed clamping arm 456 and the movable clamping arm 458 and the movable clamping arm 458 is moved to the closed position. The fixed clamping arm 456 extends from the mounting portion 452 and is attached to the mounting portion 52. In the illustrative embodiment, the clamping portion 454 is a P-shaped clamp, but other types of clamps may also be used. The clamping portion 454 may be configured to mate with components of different sizes. For example, when in the closed or clamped position, the clamping portion may have the following diameter ranges: 3.175 - 6.35 mm; 6.35 - 9.525 mm; 9.525 - 312.7 mm; 12.7 - 15.875 mm; 15.875 - 19.05 mm; 19.05 - 22.2 mm; or 22.2 - 25.4 mm.

[0107] The locking mechanism 464 extends from the movable clamping arm 458 near the free end of the movable clamping arm 458. The locking mechanism 464 has a mounting portion engaging end 466 and an operator engaging end 468. The mounting portion engaging end 466 engages the movable clamping arm engaging portion 470 of the mounting portion 452 to firmly position and hold the movable clamping arm 458 in the closed position.

[0108] The mounting portion 452 has a base 472 with a top wall 474, a bottom wall 476, and side walls 477 extending between the top wall 474 and the bottom wall 476. The protrusion receiving opening 478 extends through the base 472 from one side wall 477 to the opposite side wall 477. The opening 478 is sized to receive the protrusion 430 therein. The opening 478 is configured to have a similar but slightly larger configuration than the protrusion 430 to allow the protrusion 430 to be inserted into the opening 478 while preventing undesired movement of the fixture 450 relative to the bracket 410.

[0109] A recess 480 is provided in the side wall 477. The longitudinal axis of the recess 480 extends in a direction substantially parallel to the plane of the top wall 474. The recess 480 extends from near the opening 478 to near the end wall 482 of the mounting portion 452( Figure 33 、 35 and 36).

[0110] See Figure 33 、 35 and 36, a first recess or cavity 484 is provided in the bottom wall 476. The first cavity 484 is provided near the end wall 482. A second recess or cavity 486 is provided in the bottom wall 476. The second cavity 486 is spaced from the first cavity 484 and is provided near the opening 478.

[0111] The mounting portion 452 has a slidable locking member 490. The slidable locking member 490 has a top wall 492, a bottom wall 494, and side walls 496 extending between the top wall 492 and the bottom wall 494.

[0112] Protrusions 500 extend inwardly from each side wall 496 to the opposite side wall 496. The protrusions 500 are sized to be received in the recesses 480 of the base 472. The protrusions 500 may be depressions or have other configurations.

[0113] A locking arm 502 is provided on the bottom wall 494. The locking arm 502 has a base 504 attached to the bottom wall 494 and a free end 506. The free end 506 has a locking protrusion 508. The locking arm 502 is configured to allow the free end 506 to elastically shift relative to the base 504.

[0114] As Figure 34As shown, the fixed arm 512 extends from the end wall 510 of the slidable locking member 490. The fixed arm 512 is disposed between the side walls 496. The fixed arm 512 has a free end 514 that is configured to be received in the mounting opening 440 of the protrusion 430. The fixed arm 512 has a tapered configuration 516 near the end wall 482 to provide structural integrity to the fixed arm 512.

[0115] As Figure 26 shown, in operation, after the component 418 has been inserted into the bracket 410, the clamp 450 is positioned to be close to the component 418. As Figure 27 shown, the clamp 450 with the clamping portion 454 in the open position is then moved onto the component 418. In this position, the slidable locking member 490 is in the unlocked position. As Figure 36 and 37 shown, the slidable locking member 490 is held in the unlocked position by the engagement of the locking protrusion 508 of the locking arm 102 with the first cavity 484 of the bottom wall 476 of the base 472.

[0116] The clamp 450 is moved towards the structural member 414. When this occurs, the protrusion 430 enters the protrusion receiving opening 478 of the base 472 of the mounting portion 452 of the clamp 450, allowing the clamp to move Figure 28 to the position shown.

[0117] When the clamp 450 is correctly positioned on the protrusion 430, the slidable locking member 490 moves from Figure 36 and Figure 37 the unlocked position shown to Figure 32 、 Figure 33 and Figure 34 the locked position shown. As the slidable locking member 490 moves, the locking protrusion 508 of the locking arm 502 moves out of the first cavity 484 of the bottom wall 476 and slides across the bottom wall 476, as Figure 35 shown. When this occurs, the protrusion 500 of the side wall 496 slides in the recess 480 of the base 472. In addition, the fixed arm 512 moves into the mounting opening 440 of the protrusion 430.

[0118] This process continues until the locking protrusion 508 of the locking arm 502 moves into the second cavity 486, placing the slidable locking member 490 in the locked position, as Figure 29 、 32 、33 and 34 shown. As Figure 34 shown, in the locked position, the fixed arm 512 is fully inserted into the mounting opening 440 of the protrusion 430, thereby fixing the clamp 450 to the bracket 410. The slidable locking member 490 acts as an auxiliary lock to provide a visual and physical check to ensure that the clamp 450 is correctly positioned and fixed to the bracket 410.

[0119] When the fixture 450 is properly locked to the bracket 410, the movable clamping arm 458 rotates to the closed position, as Figure 30 shown. The operator engagement end 468 of the locking mechanism 464 is engaged, and the locking mechanism 464 is rotated to the Figure 31 position shown. In this position, the clamping portion 454 is fixed in the closed position, thereby fixing the component 418 in the fixture 450.

[0120] The fixture 450 provides a reliable method for securely fastening components (such as cable bundles) in a tool - free and quick - installation manner, reducing the number of parts that need to be stored. In addition, the slidable locking member 490 ensures that the fixture 450 is fixed to the bracket 410 and will not loosen due to vibration.

[0121] The fixture 450 can be installed in the direction shown or rotated 180 degrees. Once positioned on the bracket 410, the fixture 450 and the bracket 410 are rotationally fixed relative to the structural member 414.

[0122] Reference Figures 38 to 42 , an alternative exemplary bracket 610 is shown. The bracket 610 can be, for example, a polymer material, a thermoplastic material, a composite material, or a metal. The bracket 610 includes a base 620. The base 620 has a circular cross - section. However, without departing from the scope of the present invention, the base 620 can have other configurations, such as but not limited to a rectangular - oval cross - section.

[0123] A protrusion or projection 630 extends from the base portion 620. The projection 630 has a top wall 632, an opposite bottom wall 634, and side walls 636 extending between the top wall 632 and the bottom wall 634. A mounting opening 640 extends through the projection 630 in a direction substantially parallel to the top wall 632. The opening 640 extends through the side walls 636. Different - sized fixtures 450 can be mounted on the projection 630 of the bracket 610. Since Figures 39 to 42 the exemplary fixture 450 shown is inserted onto the projection 630 and operates in a manner similar to the aforementioned fixture 450, a detailed description will not be repeated.

[0124] Although various illustrative brackets are shown, the brackets can have different configurations and can be used for different applications without departing from the scope of the application. In addition, different configurations of the fixture 450 can be used without departing from the scope of the present invention. The brackets and fixtures shown illustrate an attachment system that requires no tools and hardware and can be quickly installed and fixed.

Claims

1. An installation system for installation onto a structural component, the installation system comprising: A bracket (10, 210, 410) having mounting protrusions (30, 230, 430), the mounting protrusions (30, 230, 430) having mounting openings (40, 240, 440) extending between side walls (36, 236, 436) of the mounting protrusions (30, 230, 430); A clamp (50, 150, 250, 350, 450) having a mounting portion (52, 252, 452) and a clamping portion (54, 254, 454), the mounting portion (52, 252, 452) having protrusion receiving openings (70, 170, 280, 478) in which the mounting protrusions (30, 230, 430) are received; A locking mechanism (78, 178, 288, 464) extending from the clamping portion (54, 254, 454), the locking mechanism (78, 178, 288, 464) having a fastening portion (83, 88, 183, 290, 512) movable between an unlocked position and a locked position.

2. The installation system according to claim 1, wherein, The mounting portion (52) has a fastening opening (73) extending through a side wall of the mounting portion (52), the fastening portion (83, 88) being rotatable between a locked position and an unlocked position, in the locked position, the fastening portion (83, 88) being located in the mounting opening (30), and in the unlocked position, the fastening portion (83, 88) being removed from the mounting opening (30).

3. The installation system according to claim 2, wherein, The mounting portion (52) has a front wall (63), a rear wall (65) and side walls (68), the protrusion receiving opening (70) extending from one side wall (68) through the mounting portion (52) to an opposite side wall (68).

4. The installation system according to claim 3, wherein, A lock receiving cavity (76) is provided in the front wall (63) of the mounting portion (52), the lock receiving cavity (76) extending from one side wall (68) to an opposite side wall (68).

5. The installation system according to claim 4, wherein, The fastening opening (73) extends through the side wall (68) into the protrusion receiving opening (70).

6. The installation system according to claim 5, wherein, The locking mechanism (78) is located in the lock receiving cavity (76), the locking mechanism (78) having a first locking arm (79) extending from a transverse member (80) held in the lock receiving cavity (76).

7. The installation system according to claim 6, wherein, The first locking arm (79) has a first engaging portion (81), a first pivot portion (82) and a first fastening portion (83), the first pivot portion (82) having a first opening (84) provided therein.

8. The installation system according to claim 7, wherein, The first fastening portion (83) has a first fastening surface (77) provided at a free end of the first fastening portion (83) spaced from the first pivot portion (82), the first fastening portion (83) having a first cam surface (94) extending between the first fastening surface (77) and the first pivot portion (82).

9. The installation system according to claim 8, wherein, The locking mechanism (78) has a second locking arm (85) extending from the lateral member (80) held in the lock receiving cavity (76). The second locking arm (85) has a second engaging portion (85), a second pivoting portion (87), and a second fastening portion (88). The second pivoting portion (87) has a second opening (89) provided therein.

10. The installation system according to claim 9, wherein, The second fastening portion (88) has a second fastening surface (90) provided at a free end of the second fastening portion (88) spaced apart from the second pivoting portion (87). The second fastening portion (88) has a second cam surface (95) extending between the second fastening surface (90) and the second pivoting portion (87).

11. The installation system according to claim 10, wherein, The second locking arm (85) has an overstress protection member (91) extending from the second engaging portion (85).

12. The installation system according to claim 2, wherein, The clamping portion (54) has a fixed clamping arm (56) and a movable clamping arm (58). The movable clamping arm (58) pivots about a pivot member (60) between an open position and a closed or clamped position.

13. The installation system according to claim 2, wherein, The locking mechanism (78) has locking arms (79, 85) with engaging portions (81, 86), pivoting portions (82, 87), and fastening portions (83, 88). The pivoting portions (82, 87) have openings (84, 89) provided therein. The fastening portions (83, 88) have fastening surfaces (77, 90) provided at free ends of the fastening portions (83, 88) spaced apart from the pivoting portions (82, 87). The fastening portions (83, 88) are configured to rotate about a post (92) between a first or unlocked position and a second or locked position.

14. A method of installing an installation system to protect a component located near a structural component, the method comprising: Mount the bracket (10) on the structural member (14). The bracket (10) has a mounting protrusion (30) with a mounting opening (40). Fix the bracket (10) to the structural member (14) to prevent the bracket (10) from rotating relative to the structural member (14). Position the fixture (50) on the mounting protrusion (30) of the bracket (10). The fixture (50) has a clamping portion (54) and a mounting portion (52). The mounting portion (52) has a protrusion receiving opening (70) that receives the mounting protrusion (30) extending from the bracket (10). The mounting portion (52) has a fastening opening (73) that extends through a side wall (68) of the mounting portion (52) into the protrusion receiving opening (70). Rotate the fastening portions (83, 88) of the mounting portion (52) of the fixture (50) to a locked position where the fastening portions (83, 88) are located in the mounting opening (40) to fix the fixture (50) to the bracket (10).

Images