The present disclosure relates to apparatuses and methods for removing cable ties.
Cable ties may be used to secure at least one cable or wire in place. The cable tie includes a head with a pawl that is configured to engage a strap having teeth.
Removal of the installed cable tie, however, may be problematic. Conventionally, the cable tie may be removed by one or more techniques. For example, a sharp object, such as a razor blade or a knife, may be used to cut through the strap to release the cable tie. However, the sharp object may damage cables or other equipment retained by the cable tie and may present a safety risk for operators. Another conventional approach is to use a tool that cuts or otherwise damages the pawl of the cable tie, causing the pawl or a portion thereof to disengage from the strap. Accordingly, damaging the pawl may produce FOD (foreign-object debris), which is undesirable, for example, in aircraft applications.
Accordingly, apparatuses and methods, intended to address at least the above-identified concerns, would find utility.
The following is a non-exhaustive list of examples, which may or may not be claimed, of the subject matter according to the invention.
One example of the subject matter according to the invention relates to a tool for releasing a cable tie that comprises a head. The tool comprises a housing, an elongated member, a trigger, a first jaw, and a second jaw. The housing comprises a housing abutment surface. The elongated member is disposed at least partially within the housing. The elongated member comprises a distal end, a proximal end, and an elongated-member abutment surface. The trigger is pivotally coupled to the housing. The trigger is coupled to the elongated member and the elongated member translates along an axis when the trigger is moved relative to the housing. The first jaw abuts the housing abutment surface of the housing and is configured to engage the head of the cable tie from a first side of the head. The first jaw is located between the distal end of the elongated member and the housing abutment surface of the housing. The second jaw abuts the elongated-member abutment surface of the elongated member and is configured to engage the head of the cable tie from a second side of the head, opposite the first side. The second jaw translates relative to the first jaw along the axis when the trigger is pivoted with respect to the housing.
Use of a tool as set forth above and elsewhere herein provides for convenient, reliable removal of cable ties. For example, FOD resulting from cable tie removal may be reduced or eliminated. Use of the housing, elongated member, and trigger provide for convenient, reliable articulation of the first jaw and second jaw to remove cable ties.
Another example of the subject matter according to the invention relates to a method of using a tool to release a cable tie, fastened around an object. The tool comprises a housing, an elongated member, a trigger, a first jaw, and a second jaw. The housing has a housing abutment surface. The elongated member is disposed at least partially within the housing and has a distal end and a proximal end. The trigger is pivotally coupled to the housing and is coupled to the proximal end of the elongated member. The first jaw abuts the housing abutment surface of the housing and is configured to engage a head of the cable tie from a first side of the head. The second jaw abuts the proximal end of the elongated member and is configured to engage the head of the cable tie from a second side of the head, opposite the first side. The method comprises positioning the tool with the first jaw proximate the second side of the head of the cable tie and with the second jaw proximate the first side of the head of the cable tie. The method also comprises contacting the second side of the cable tie with a first positioning tooth of the first jaw. Further, the method comprises, with the first positioning tooth of the first jaw contacting the second side of the head, actuating the trigger to translate the elongated member and advance a second-opening-tooth distal end of a second opening tooth of the second jaw inside an opening of the cable tie until the second-opening-tooth distal end is in contact with a contact portion of the cable tie. Additionally, the method comprises further moving the elongated member to urge the second-opening-tooth distal end of the second opening tooth of the second jaw toward the first positioning tooth of the first jaw to bias a pawl of the cable tie out of contact with teeth of the cable tie. The method also comprises removing the cable tie from the object.
Use of a method as set forth above and elsewhere herein provides for convenient, reliable removal of cable ties. For example, FOD resulting from cable tie removal may be reduced or eliminated. Use of the housing, elongated member, and trigger provide for convenient, reliable articulation of the first jaw and second jaw to remove cable ties.
Having thus described one or more examples of the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein like reference characters designate the same or similar parts throughout the several views, and wherein:
In
In
In the following description, numerous specific details are set forth to provide a thorough understanding of the disclosed concepts, which may be practiced without some or all of these particulars. In other instances, details of known devices and/or processes have been omitted to avoid unnecessarily obscuring the disclosure. While some concepts will be described in conjunction with specific examples, it will be understood that these examples are not intended to be limiting.
Unless otherwise indicated, the terms “first,” “second,” etc. are used herein merely as labels, and are not intended to impose ordinal, positional, or hierarchical requirements on the items to which these terms refer. Moreover, reference to, e.g., a “second” item does not require or preclude the existence of, e.g., a “first” or lower-numbered item, and/or, e.g., a “third” or higher-numbered item.
Reference herein to “one example” means that one or more feature, structure, or characteristic described in connection with the example is included in at least one implementation. The phrase “one example” in various places in the specification may or may not be referring to the same example.
As used herein, a system, apparatus, structure, article, element, component, or hardware “configured to” perform a specified function is indeed capable of performing the specified function without any alteration, rather than merely having potential to perform the specified function after further modification. In other words, the system, apparatus, structure, article, element, component, or hardware “configured to” perform a specified function is specifically selected, created, implemented, utilized, programmed, and/or designed for the purpose of performing the specified function. As used herein, “configured to” denotes existing characteristics of a system, apparatus, structure, article, element, component, or hardware which enable the system, apparatus, structure, article, element, component, or hardware to perform the specified function without further modification. For purposes of this disclosure, a system, apparatus, structure, article, element, component, or hardware described as being “configured to” perform a particular function may additionally or alternatively be described as being “adapted to” and/or as being “operative to” perform that function.
Illustrative, non-exhaustive examples, which may or may not be claimed, of the subject matter according the present disclosure are provided below.
Referring generally to
Use of a tool as set forth above and elsewhere herein provides for convenient, reliable removal of cable ties. For example, FOD resulting from cable tie removal may be reduced or eliminated. Use of the housing, elongated member, and trigger provide for convenient, reliable articulation of the first jaw and second jaw to remove cable ties.
Referring generally to
In the illustrated example, first jaw 130 (e.g., first opening-tooth distal end 162 of first opening tooth 160 of first jaw 130) of tool 100 is urged into contact with pawl 220 (e.g., by a force acting against jaw-compression spring 190 of tool 100). As first jaw 130 is further urged against pawl 220, pawl 220 biases out of engagement with teeth 233. Second jaw 140 (e.g., second-positioning-tooth distal end 172 of second positioning tooth 175) helps position and secure cable tie 200 while first jaw 130 is urged against and biases pawl 220. Once strap 230 is removed from opening 211 and cable tie 200 is removed from one or more objects, an external force may be removed, and first jaw 130 and second jaw 140 are urged away from each other to remove head 210 of cable tie 200 from tool 100 (e.g., by allowing jaw-compression spring 190 to bias first jaw 130 and second jaw 140 apart from each other a sufficient distance to remove head 210 of cable tie 200 from tool 100). It may be noted that other arrangements may be utilized. For example, first jaw 130 may be employed for positioning cable tie 200 within tool 100, and second jaw 140 used to bias pawl 220 out of engagement with teeth 233.
The particular dimensions of tool 100, including the configuration and placement of first jaw 130 and second jaw 140, may be selected or determined such that aspects of first jaw 130 and second jaw 140 not protrude far enough into opening 211 to shear or otherwise separate pawl 220 from head 210, and/or so that pawl 220 is not damaged. For example, aspects of first jaw 130 and/or second jaw 140 may be selected or designed such that pawl 220 is only biased or deflected an amount that does not shear, permanently deform, mangle, or otherwise permanently damage pawl 220 or other aspect of cable tie 200.
For example, cable tie 200 may be made of a resilient material, such that, after pawl 220 is actuated by one of first jaw 130 or second jaw 140 from an original position corresponding to engagement of pawl 220 with teeth 233 of strap 230, pawl 220 may resiliently spring back to the original position (or near to the original position if strap 230 is removed while one of first jaw 130 or second jaw 140 biases pawl 220 out of an engagement position) when first jaw 130 and/or second jaw 140 is withdrawn from opening 211 of head 210 of cable tie 200.
Aspects of tool 100 may be sized and configured so that, when tool 100 is in a closed state (e.g., with first jaw 130 and second jaw 140 brought toward each other sufficiently to bias pawl 220 out of engagement with teeth 233, pawl 220 is not actuated past a threshold or limit beyond which pawl 220 is damaged or otherwise not able to return to the original position. Thus, pawl 220 may be understood as non-destructively biased by tool 100. Thus, cable tie 200 may be re-used after being released from an object (e.g., bundle of cables or wires) using tool 100. Even if cable tie 200 is not re-used, cable tie 200 may be disposed of with pawl 220 still intact (e.g., connected to head 210), with no debris formed or separated from cable tie 200, thereby reducing or eliminating the creation of debris from the release of cable tie 200.
Pawl 220 and cable tie 200 may be made of a resilient material (e.g., a material that may be biased responsive to a force and resiliently return to an original shape or configuration when the force is removed), such as resilient plastic. Tool 100, or portions thereof (e.g., elongated member 120, first jaw 130, second jaw 140, jaw-compression spring 190) may be made of a metal or other sufficient rigid material, so that, when first jaw 130 and/or second jaw 140 is urged against pawl 220, pawl 220 biases to disengage pawl 220 from strap 230, and first jaw 130 and/or second jaw 140 do not bias or deflect, or bias or deflect a negligible amount that does not interfere with the disengagement of pawl 220 from strap 230. Portions of tool 100 (e.g., housing 110, trigger 170) may be made of a lightweight material, such as plastic, for ease of manufacture and use. For example, housing 110 and/or trigger 170 may be 3D printed, or as another example, molded. Generally, housing 110 and trigger 170 are configured to provide secure, repeatable, reliable movement or translation of elongated member to provide reliable articulation of first jaw 130 and second jaw 140 with respect to each other.
Referring generally to
Use of grip 171 provides convenient, controllable, and reliable movement of trigger 170 and actuation of tool 100. Pivotally coupling trigger 170 to housing 110 provides for convenient mounting as well as repeatable, reliable actuation of tool 100. It may be noted that the size of grip 171 and/or the positioning of pivot axis 115 and/or coupling axis 123 may be selected to provide a desired range of travel for elongated member 120 (and first jaw 130 and second jaw 140 relative to each other) and/or a desired amount of force (e.g., from a manual input applied via grip 171) for removal of cable tie 200. Grip 171 may be 3D printed, or as another example, molded from a plastic, and sized and shaped for convenient or comfortable use with the human hand.
Referring generally to
Use of handle stop surface 116 helps prevent over-penetration of first jaw 130 and/or second jaw 140 into cable tie 200, and prevents shearing or other damage to pawl 220. Trigger 170 and handle stop surface 116, and/or related components, may be sized and configured so that, when tool 100 is in a closed state (e.g., with first jaw 130 and second jaw 140 brought toward each other sufficiently to bias pawl 220 out of engagement with teeth 233), pawl 220 is not actuated past a threshold or limit beyond which pawl 220 is damaged or otherwise not able to return to the original position.
Referring generally to
Use of positioning teeth (e.g., first positioning tooth 150 and/or second positioning tooth 175) allows for accurate positioning of tool 100 (e.g., first jaw 130 and/or second jaw 140) with respect to cable tie 200 to be removed, and/or provides secure maintenance of head 210 of cable tie 200 in a desired position while one of first jaw 130 or second jaw 140 is used to release cable tie 200 (e.g., used to bias pawl 220 out of engagement with teeth 233 of strap 230) . . . .
Referring generally to
Use of opening teeth (e.g., first opening tooth 160 and/or second opening tooth 173 allows for reliable release of cable tie 200 (e.g., by cooperating with positioning teeth to allow for accurate positioning of tool 100 or aspects thereof with respect to cable tie 200 to be removed. It may be noted that, when first jaw 130 and second jaw 140 are oriented at 180 degrees to each other (e.g., first positioning tooth 150 faces toward second opening tooth 173, and second positioning tooth 175 faces toward first opening tooth 160), two different arrangements for grasping and releasing cable tie 200 are provided, thereby providing flexibility in positioning and use of tool 100 with respect to cable tie 200 (e.g., tool 100 may be used in two different positions with respect to cable tie 200).
It may be noted that different jaws with different sized opening teeth and/or positioning teeth may be interchangeably used by tool 100 to allow use with a wide range of sizes and/or styles of cable ties.
Referring generally to
Use of differently sized first positioning tooth 150 and second opening tooth 173 helps match tool 100 with particular sizing or other requirements of cable ties in use to allow for accurate positioning of tool 100 or aspects thereof (e.g., first jaw 130 and second jaw 140) with respect to cable tie 200 to be removed. For example, first positioning tooth 150 may be shorter than second opening tooth 173 to allow for more spacing between first positioning tooth 150 and second opening tooth 173 with tool 100 in an open position for insertion of head 210 of cable tie 200 between first positioning tooth 150 and second opening tooth 173, while still allowing second opening tooth 173 sufficient length to effectively bias pawl 220 out of engagement with teeth 233.
Referring generally to
Use of first pair of opposing jaw wings 139 and second pair of opposing jaw wings 149 provides lateral support during sliding of first jaw 130 and second jaw 140 (e.g., after contact with pawl 220 to help prevent twisting) and/or provides a positive stop to prevent first jaw 130 and second jaw 140 from getting too close to each other during releasing of cable tie 200, which might remove portions from head 210 (e.g., pawl 220) of cable tie 200 resulting in debris and/or resulting in inability to re-use cable tie 200 after removal.
As seen in the illustrated example, first pair of opposing jaw wings 139 and second pair of opposing jaw wings 149 may extend from only a portion of edges of a corresponding one of first base 157 or second base 169, and be configured to overlap when first jaw 130 and second jaw 140 are urged together. It may be noted that first pair of opposing jaw wings 139 and/or second pair of opposing jaw wings 149 may be formed integrally with the corresponding base from which they extend, for example as part of a casting.
The particular size of first pair of opposing jaw wings 139 may be selected so that first jaw 130 and/or second jaw 140 sufficiently penetrates opening 211 to bias pawl 220 out of engagement with teeth 233, but is prevented from penetrating deeply enough to shear or otherwise dislodge pawl 220 (or portion thereof) from head 210 of cable tie 200. Also, the particular size of second pair of opposing jaw wings 149 may be selected so that first jaw 130 and/or second jaw 140 sufficiently penetrates opening 211 to bias pawl 220 out of engagement with teeth 233, but is prevented from penetrating deeply enough to shear or otherwise dislodge pawl 220 (or portion thereof) from head 210 of cable tie 200.
Referring generally to
Orienting first jaw 130 and second jaw 140 at 180 degrees to each other (e.g., first positioning tooth 150 faces toward second opening tooth 173, and second positioning tooth 175 faces toward first opening tooth 160), provides two different arrangements for grasping and releasing cable tie 200 are provided, thereby providing flexibility in positioning and use of tool 100 with respect to cable tie 200 (e.g., tool 100 may be used in two different positions with respect to cable tie 200). For example, tool 100 may be placed underneath cable tie 200 or above cable tie 200. As another example, tool 100 may be advanced from a first direction to cable tie 200, or advanced from a second, opposite direction to cable tie 200.
Referring generally to
Disposing elongated member 120 in central cavity 113 extending along axis 121 provides for reliable positioning and movement of elongated member 120 (and, accordingly, movement of first jaw 130 and second jaw 140 with respect to each other.
It may be noted that central cavity 113 may be formed within housing 110 as part of a 3D printing process, or, as another example, as part of a molding process.
Referring generally to
Use of assembly opening 114 provides for convenient access to the interior of housing 110 (e.g., central cavity 113) for placement and securement of components such as elongated member. Use of proximal member 127 and distal member 126 allows for use of differently sized portions of elongated member 120 to help maintain elongated member 120 within central cavity 113 during assembly and use.
In the illustrated example, assembly opening 114 is at an oblique angle to central cavity 113 and central axis 151. Proximal member 127 is inserted through assembly opening 114 at the oblique angle (from the left as seen in
Referring generally to
Use of base compression spring 191 helps return tool 100 to an open position (e.g., first jaw 130 and second jaw 140 separated a sufficient distance for placement of first jaw 130 and second jaw 140 on opposite sides of the exterior of cable tie 200).
In the example illustrated in
Referring generally to
Use of central opening 117 and insertion portion 132 provides for reliable placement and securement of first jaw 130 to housing 110.
It may be noted that the shape of central opening 117 and insertion portion 132 may be identical (e.g., both having a square shape) or different. Generally, central opening 117 and insertion portion 132 are sized and shaped to cooperate with each other and prevent first jaw 130 from rotating with respect to housing 110 when tool 100 is used to remove cable tie 200.
Referring generally to
Use of different orientations allows for flexibility and adjustability of tool 100, allowing for different angles and/or directions of approach to cable tie 200, and allowing tool 100 to access cable tie 200 from different orientations (e.g., based on any obstructions near cable tie 200).
Referring generally to
Use of a square-shaped opening for central opening 117 and insertion portion 132 having an octagonal shape provides secure placement of insertion portion 132 within central opening 117 while also providing a variety of available orientations of first jaw 130 with respect to housing 110. Use of a square-shaped opening for central opening provides for convenient and relatively simple manufacturing of housing 110 (e.g., via molding or 3D printing).
Depending on which side of insertion portion 132 that is octagonally shaped abuts a particular side of square-shaped central opening 117, eight different orientations of first jaw 130 with respect to housing 110 are available, allowing for adjustment of first jaw 130 in increments of 45 degrees with respect to housing 110.
Referring generally to
Use of abutment surface 153 in cooperation with housing abutment surface 112 provides for reliable, accurate positioning of first jaw 130 during operation of tool 100.
Referring generally to
Use of jaw-compression spring 190 provides an initial position (e.g., when jaw-compression spring 190 is not acted against) that maintains first jaw 130 and second jaw 140 in a position that allows placement of first jaw 130 and second jaw 140 around cable tie 200 to be removed. Jaw-compression spring 190 may also be used to urge first jaw 130 against housing 110 and helps maintain first jaw 130 in a desired position during use of tool 100.
Referring generally to
Use of jaw-compression spring 190 to bias first jaw 130 against housing abutment surface 112 and second jaw 140 against elongated-member abutment surface 128 provides support for positioning first jaw 130 and second jaw 140, for maintaining first jaw 130 in contact with housing 110 during movement of tool 100 and/or removal of cable tie 200, and ma.
Referring generally to
Use of method 300 as set forth above and elsewhere herein (e.g., in connection with tool 100) provides for convenient, reliable removal of cable ties (e.g., cable tie 200). For example, FOD resulting from cable tie removal may be reduced or eliminated. Use of housing 110, elongated member 120, and trigger 170 provide for convenient, reliable articulation of first jaw 130 and second jaw 140 to remove cable tie 200. It may be noted that, additionally or alternatively, second jaw 140 may be used for positioning cable tie 200 with respect to tool 100 and first jaw 130 used for biasing pawl 220 out of contact with teeth 233 of cable tie 200.
Referring generally to
Contacting inner surface 217 with first-positioning-tooth distal end 152 improves stability of removal of cable tie 200. First positioning tooth 150 helps maintain cable tie 200 in place with respect to tool 100 while second opening tooth 173 of second jaw 140 is advanced into opening 211 to bias pawl 220 out of engagement with teeth 233 of cable tie 200. The particular sizing and/or shaping of first positioning tooth 150 may be selected to accommodate a particular size and/or shape of cable tie 200 (or group or range of cable ties) to be removed with tool 100.
Referring generally to
Use of first jaw 130 and second jaw 140 that are identical to each other helps save production costs and inventory costs. Use of first jaw 130 and second jaw 140 that are identical to each other also simplifies assembly, as there is no need to search for or distinguish between first jaw 130 and second jaw 140. It may be noted that, while identical to each other, first jaw 130 and second jaw 140 may be oriented differently, such that complementary portions, instead of identical portions, of first jaw 130 and second jaw 140 face each other during use of tool 100 (e.g., first opening tooth 160 of first jaw 130 and second positioning tooth 175 of second jaw 140 facing each other for use on opposite sides of cable tie 200).
Referring generally to
Orienting first jaw 130 and second jaw 140 at 180 degrees with respect to each other about central axis 151 aligns complementary or cooperating portions of first jaw 130 and second jaw 140 for efficient, reliable removal of cable tie 200. For example, first positioning tooth 150 of first jaw 130 and second opening tooth 173 of second jaw 140 face or oppose each other when first jaw 130 and second jaw 140 are oriented at 180 degrees with respect to each other about central axis 151.
Referring generally to
Use of different orientations allows for flexibility and adjustability of tool 100, allowing for different angles and/or directions of approach to cable tie 200, and allowing tool 100 to access cable tie 200 from different orientations (e.g., based on any obstructions near cable tie 200). For example, first orientation 138 may be employed when access to cable tie 200 is available from a first direction (e.g., from below cable tie 200), and second orientation 141 may be employed when access to cable tie 200 is available from a different, second direction (e.g., from above cable tie 200).
Referring generally to
Use of central opening 117 and insertion portion 132 as discussed herein provides for reliable placement and securement of first jaw 130 to housing 110 while providing flexibility of use by providing for adjustment between first orientation 138 and second orientation 141 (and/or other orientations).
Referring generally to
Use of jaw-compression spring 190 in the placement and securement of insertion portion 132 provides for secure positioning of insertion portion 132 in central opening 117 of housing while allowing for replacement and/or adjustment to a different orientation of first jaw 130. Jaw-compression spring 190 may be sized and shaped to provide sufficient force to maintain insertion portion 132 of first jaw 130 in central opening 117 of housing 110 during use of tool 100 to remove cable tie 200, while providing a small enough force to be conveniently compressed by an operator during re-orientation or replacement of first jaw 130.
Referring generally to
Rotation of trigger 170 about pivot axis 115 to translate elongated member 120 along axis 121 to urge first jaw 130 and second jaw 140 toward each other provides convenient reliable actuation of tool 100 for removal of cable tie 200. An operator may grasp tool 100 via handle 111 and trigger 170, and urge trigger 170 towards handle 116 to actuate tool 100 and remove cable tie 200.
Referring generally to
Retaining cable tie 200 with tool 100 after removal helps to prevent the generation of debris (FOD) in an airframe or other environment in which tool 100 is used to remove cable 200. It may be noted that cable tie 200 may be deposited directly into a waste receptacle from tool 100, or may be deposited indirectly (e.g., placed in an operator's hand from tool 100 and then discarded). To retain cable tie 200 in tool 100, trigger 170 may be maintained in an actuated position (e.g., urged toward handle 116) after removal, with trigger 170 released (e.g., via reduction or elimination of force urging trigger 170 toward handle 116) to release cable tie 200 from tool 100.
Examples of the present disclosure may be described in the context of aircraft manufacturing and service method 1100 as shown in
Each of the processes of illustrative method 1100 may be performed or carried out by a system integrator, a third party, and/or an operator (e.g., a customer). For the purposes of this description, a system integrator may include, without limitation, any number of aircraft manufacturers and major-system subcontractors; a third party may include, without limitation, any number of vendors, subcontractors, and suppliers; and an operator may be an airline, leasing company, military entity, service organization, and so on.
As shown in
Apparatus(es) and method(s) shown or described herein may be employed during any one or more of the stages of the manufacturing and service method 1100. For example, components or subassemblies corresponding to component and subassembly manufacturing (block 1108) may be fabricated or manufactured in a manner similar to components or subassemblies produced while aircraft 1102 is in service (block 1114). Also, one or more examples of the apparatus(es), method(s), or combination thereof may be utilized during production stages 1108 and 1110, for example, by substantially expediting assembly of or reducing the cost of aircraft 1102. Similarly, one or more examples of the apparatus or method realizations, or a combination thereof, may be utilized, for example and without limitation, while aircraft 1102 is in service (block 1114) and/or during maintenance and service (block 1116).
Different examples of the apparatus(es) and method(s) disclosed herein include a variety of components, features, and functionalities. It should be understood that the various examples of the apparatus(es) and method(s) disclosed herein may include any of the components, features, and functionalities of any of the other examples of the apparatus(es) and method(s) disclosed herein in any combination, and all of such possibilities are intended to be within the scope of the present disclosure.
Many modifications of examples set forth herein will come to mind to one skilled in the art to which the present disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings.
Therefore, it is to be understood that the present disclosure is not to be limited to the specific examples illustrated and that modifications and other examples are intended to be included within the scope of the appended claims. Moreover, although the foregoing description and the associated drawings describe examples of the present disclosure in the context of certain illustrative combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative implementations without departing from the scope of the appended claims. Accordingly, parenthetical reference numerals in the appended claims are presented for illustrative purposes only and are not intended to limit the scope of the claimed subject matter to the specific examples provided in the present disclosure.