RATCHETING WRENCH APPARATUS, SYSTEM AND METHOD OF USE THEREOF

Abstract

The present invention surrounds to a ratchet apparatus, system and use thereof. The invention is presented to provide additional mechanical advantage and added angular engagement of a ratcheting wrench. In particular the present invention provides increased torque and angular engagement within a compact space without requiring an extended handle, wherein an extended handle reduces portability and further restricts access and movement within confined spaces.

Claims

1. A ratcheting wrench comprising: a first handle having a first end interconnected with a first ratcheting mechanism, wherein the first ratcheting mechanism allows rotation between the first ratcheting mechanism and the first handle in a first direction about a drive axis, and the first ratcheting mechanism restricts rotation between the first ratcheting mechanism and the first handle in a second direction about the drive axis; a second handle having a first end interconnected with a second ratcheting mechanism; the second ratcheting mechanism is coaxially interconnected with the first ratcheting mechanism, wherein the ratcheting mechanisms are rotatively independent; and the second ratcheting mechanism allows rotation between the second ratcheting mechanism and the second handle in the first direction about the drive axis, and restricts rotation between the second ratcheting mechanism and the second handle in the second direction, wherein the handles can be rotated about the drive axis independently of each other in the same direction, or opposing directions in relation to each other simultaneously.

2. The ratcheting wrench of claim 1, further comprising a drive tang extending away from the ratcheting mechanism coaxially with the drive axis, wherein the drive tang is adapted for interconnecting with a wrench socket and applying a torque thereto.

3. The ratcheting wrench of claim 2, wherein the drive tang comprises a square-drive tang adapted for interconnecting with a square-drive wrench socket.

4. The ratcheting wrench of claim 3, wherein the ratcheting wrench further comprises a reversing lever, wherein when the reversing lever is in a first position, the ratcheting mechanisms allow rotation between the handles and their respective ratcheting mechanisms in the first direction, and restrict rotation between the handles and their respective ratcheting mechanisms in the second direction, and wherein the reversing lever is in a second position, the ratcheting mechanisms restrict rotation between the handles and their respective ratcheting mechanisms in the first direction, and allow rotation between the handles and their respective ratcheting mechanisms in the second direction.

5. The ratcheting wrench of claim 4, wherein in an aligned configuration, the first handle and second handle are aligned and configured for use in concert, and wherein in a misaligned configuration the first handle and the second handle are misaligned and configured for independent use.

6. The ratcheting wrench of claim 5, wherein the first handle and the second handle are configured to nest together to result in a unitary form for use in concert.

7. The ratcheting wrench of claim 6, wherein the first handle comprises an interfacing surface configured to interconnect with an interfacing surface of the second handle when the handles are in an aligned configuration.

8. The ratcheting wrench of claim 7, wherein at least a portion of the interfacing surfaces of the handles are perpendicular to the drive axis.

9. The ratcheting wrench of claim 8, wherein the first handle comprises a planar interfacing surface between the first end of the first handle and a second end of the first handle; and the second handle comprises a planar interfacing surface between the first end of the second handle and a second end of the second handle.

10. The ratcheting wrench of claim 9, wherein the planar interfacing surfaces are perpendicular to the drive axis.

11. The ratcheting wrench of claim 6, wherein the first handle comprises helical interfacing surface, and the second handle comprising a helical interfacing surface configured to nest with the helical interfacing surface of the first handle when the handles are in an aligned configuration.

12. The ratcheting wrench of claim 11, wherein the helical interfacing surfaces comprise at least 60-degrees of twist between the first ends of the handles and the second ends of the handles.

13. The ratcheting wrench of claim 12, wherein the helical interfacing surfaces comprise 90-degrees of twist between the first ends of the handles and the second ends of the handles.

14. The ratcheting wrench of claim 6, wherein the first handle comprises a second end having a planar surface parallel with the drive axis; and the second handle comprises a planar surface parallel with the drive axis.

15. The ratcheting wrench of claim 5, wherein the first ratcheting mechanism comprises a quantity (N) of gear teeth, wherein the gear teeth of the first ratcheting mechanism comprise a circular pitch (p); and the second ratcheting mechanism comprising (N) teeth, wherein the teeth of the second ratcheting mechanism are configured to be offset when the first handle and the second handle are aligned.

16. The ratcheting wrench of claim 15, wherein the offset of the second ratcheting mechanism from the first ratcheting mechanism is equal to a distance of (½p).

17. A ratcheting wrench comprising: a ratcheting mechanism; a square-drive tang extending outward from a first side of the ratcheting mechanism, the square-drive tang comprising a drive axis, wherein the square-drive tang is configured to interconnect with a wrench socket; and a square-drive recess on a second side of the ratcheting mechanism, wherein the square-drive recess is configured to allow the interconnection of socket tool comprising a square-drive tang, and wherein the square-drive recess is coaxial with the square-drive tang; a handle interconnected to the ratcheting mechanism extending radially outward from the ratcheting mechanism, wherein the ratcheting mechanism is configured to allow rotation between the ratcheting mechanism and the handle in a first direction, and restricts rotation between the ratcheting mechanism and the first handle in a direction.

18. The ratcheting wrench of claim 17, further comprising a reversing lever; wherein when the reversing lever is in a first position, the ratcheting mechanism is configured to allow rotation between the ratcheting mechanism and the handle in the first direction, and restricts rotation between the ratcheting mechanism and the handle in the second direction, and wherein when the reversing lever is in a second position, the ratcheting mechanism is configured to allow rotation between the ratcheting mechanism and the handle in the second direction, and restricts rotation between the first ratcheting mechanism and the first handle in the first direction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1A—A side view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0018] FIG. 1B—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0019] FIG. 1C—An exploded perspective assembly view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0020] FIG. 1D—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0021] FIG. 2A—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0022] FIG. 2B—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0023] FIG. 2C—An exploded perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0024] FIG. 3A—An exploded side view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0025] FIG. 3B—An exploded perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0026] FIG. 4A—A side view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0027] FIG. 4B—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0028] FIG. 4C—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0029] FIG. 5A—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench wherein the handles comprise a longitudinal twist

[0030] FIG. 5B—A rear view of certain embodiments of the present invention comprising a two-handled ratcheting wrench wherein the handles comprise a longitudinal twist

[0031] FIG. 5C—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench wherein the handles comprise a longitudinal twist

[0032] FIG. 5D—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench wherein the handles comprise a longitudinal twist

[0033] FIG. 6A—A side view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0034] FIG. 6B—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0035] FIG. 6C—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0036] FIG. 6D—A top view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0037] FIG. 7A—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0038] FIG. 7B—A perspective view of certain embodiments of the present invention comprising a two-handled ratcheting wrench

[0039] FIG. 8A—A perspective view of certain embodiments of the present invention comprising a first ratcheting mechanism and a second ratcheting mechanism

[0040] FIG. 8B—A side view of certain embodiments of the present invention comprising a first ratcheting mechanism and a second ratcheting mechanism

[0041] FIG. 8C—A section view the embodiment shown in FIG. 8B

[0042] FIG. 8D—A section view the embodiment shown in FIG. 8B

[0043] FIG. 9A—A top view of certain embodiments of the present invention comprising a compound ratcheting wrench

[0044] FIG. 9B—A side view of certain embodiments of the present invention comprising a compound ratcheting wrench

[0045] FIG. 9C—An exploded perspective assembly view of certain embodiments of the present invention comprising a compound ratcheting wrench

[0046] FIG. 10A—A perspective view of certain embodiments of the present invention comprising an adaptor

[0047] FIG. 10B—A perspective view of certain embodiments of the present invention comprising an adaptor

DETAILED DESCRIPTION OF VARIOUS EMBODIMENTS

[0048] Certain embodiments of the present invention, as shown in FIG. 1A-FIG. 1D for instance, comprise a ratcheting wrench 1000 comprising a first handle 1100 and a second handle 1200 which are configured to be used in concert as a unitary handle, or separately as independent handles. The first handle 1100 has a first end 1110 interconnected to a first ratcheting mechanism 1150 and the second handle 1200 has a first end 1210 interconnected to a second ratcheting mechanism 1250. While a ratcheting mechanism as taught herein surrounds a mechanism comprising geared element and a pawl configured to selectively allow rotation between elements in a first direction and restrict rotation in a second direction, embodiments comprising a non-geared element and an interfacing elements configured to selectively allow rotation between elements in a first direction and restrict rotation in a second direction are within the spirit and scope of the present invention.

[0049] The first end of the first handle 1100 is interconnected with a first ratcheting mechanism 1150, and a first end 1210 of the second handle is interconnected with a second ratcheting mechanism 1250. The first ratcheting mechanism 1150 and the second ratcheting mechanism 1250 comprise a drive axis 1300 which is coaxial with a ratcheting wrench is intended to apply a moment—or torque—to a threaded fastener 9000. The first ratcheting mechanism 1150 is configured to allow rotation between the first ratcheting mechanism 1150 and the first handle in a first direction 2100 about the drive axis 1300, and restrict rotation between the first ratcheting mechanism 1150 and the first handle 1100 in a second direction 2200 about the drive axis 1300. Similarly, the second ratcheting mechanism 1250 is configured to allow rotation between the second ratcheting mechanism 1250 and the second handle 1200 in a first direction 2100 about the drive axis 1300, and restrict rotation between the second ratcheting mechanism 1250 and the second handle 1200 in a second direction 2200 about the drive axis 1300.

[0050] In certain embodiments the first ratcheting mechanism 1250 and the second ratcheting mechanism 1250 are coaxially interconnected coaxially along the drive axis 1300 wherein the first ratcheting mechanism 1150 and the second ratcheting mechanisms 1250 are configured to rotate independently of each other. When used in concert as one unitary handle, the first handle 1100 and the second handle 1200 are aligned in an aligned configuration 1030, and both handles can be grasped by a single hand for the application of torque. When used independently, the handles are in a misaligned configuration 1040 and a user places one hand on a first handle 1100 and a second hand on the second handle 1200. The handles can be rotated simultaneously in the same direction—the first direction 2100 or the second direction 2200—to assist in providing increased mechanical advantage allowing a user to apply more torque to a threaded fastener 9000 to tighten or loosen it, and then rotate both handles in the alternate direction to reset the handles. Alternatively, when used independently, the first handle 1100 and the second handle 1200 can be used simultaneously by alternatingly rotating the first handle 1100 in the first direction 2100 to apply torque to a threaded fastener 9000 while rotating the second handle 1200 in the second direction 2200 to reset the position of the second handle 2200 in a first step. Subsequently, in a second step the first handle 1100 is rotated in the second direction 2200 to reset the first handle 1100 while the second handle 1200 is rotated in the first direction 2100 to apply torque to the fastener. Accordingly in each step the threaded fastener 9000 is rotated allowing the removal or advancing of a threaded fastener 9000 twice as rapidly as single-handed use would allow.

[0051] In certain embodiments, as shown in FIG. 2A-FIG. 3B for instance, a reversing lever 1400 is configured to control the orientation of a pawl 1160 within the ratcheting mechanism 1150 which is configured to allow rotation of a handle 1100 around a drive axis 1300 in relation to a ratchet wheel 1170 in a first direction, but restrict the rotation of the handle 1100 around the drive axis 1300 in relation to a ratchet wheel 1170 in a second direction 2200. Embodiments disclosed herein include those, such as shown in FIG. 2A-FIG. 2C, that comprise a ratcheting mechanism 1150 having ratchet wheel 1170 that comprises gear teeth 1180 wherein the ratchet wheel 1170 rotates independently of the handle 1100 and the pawl 1160 rotates with the handle 1100. Alternative embodiments, such as shown in FIG. 3A-FIG. 3B and taught by Kress, comprising a handle 1100 having a housing 1130 at a first end 1100 comprising a drive ring 1190 comprising gear teeth 1180 which rotate with the handle 1100 such as taught by the '379 Patent, wherein the pawl 1160 rotates independently of the handle 1100 are within the spirit and scope of the present invention.

[0052] In certain embodiments comprising two handles 1100, 1200 each with their own ratcheting mechanism 1150, 1250, a single reversing lever 1400 is configured to control the orientation of a first pawl 1160 within the first ratcheting mechanism 1150, and the orientation of a second pawl 1260 within the second ratcheting mechanism 1250. As such, placing the reversing lever 1400 in a first orientation 1410 allows the rotation of the handles in a first direction 2100 in relation to the ratcheting mechanisms while restricting rotation in the second direction 2200, and placing the reversing lever 1400 in a second orientation 1420 allows the rotation of the handles in the second direction 2200 in relation to the ratcheting mechanisms and restricting rotation 2100 in the first direction.

[0053] In certain embodiments, as shown in FIG. 1A-FIG. 3B for instance, a square-drive tang 1330 extends away from the ratcheting mechanisms 1150, 1250 wherein the square-drive tang 1330 is adapted for interconnecting with a wrench socket 9100 and applying torque thereto to rotate a threaded fastener 9000. While embodiments described herein surround the use of a square-drive ratcheting wrench in accordance with American Standards Association (ASA) B5.38-1958, alternate embodiments employing alternate drive methods including a spline drive such as disclosed by Colvin and Moetteli, or a ratcheting box wrench as disclosed by Lang, are within the spirit and scope of the present invention. In certain embodiments the square-drive tang 1330, or alternate drive method, rotates coaxially with the ratcheting mechanisms 1150, 1250 and the drive axis 1300.

[0054] In certain embodiments of the present invention comprising two handles 1100, such as shown in FIG. 4A-FIG. 4C, the first handle 1100 comprises an interfacing surface 1140 configured to interconnect with an interfacing surface 1240 of the second handle when the handles are in an aligned configuration 1030. The handles are configured to interconnect or nest together to form a unitary form when the handles are aligned. In certain embodiments at least a portion of each of the interfacing surfaces 1140, 1240 are perpendicular to the drive axis 1300 of the ratcheting mechanism. In certain embodiments the interfacing surfaces 1140, 1240 each comprise planar surface 1141, 1241 between the first ends of the handles 1110, 1210 and the second ends 1120, 1220 of the handles. In certain embodiments, the interfacing surfaces 1140, 1240 each comprise a planar surface 1141, 1241 perpendicular to the drive axis 1300 wherein the planar surface 1141, 1241 extends from the first ends of the handles 1110, 1210 to the second ends 1120, 1220 of the handles. In alternate embodiments, as shown in FIG. 5A-FIG. 5D, a first handle 1100 and a second handle 1200 comprise interfacing surfaces 1140, 1240 comprising a helical aspect. In certain embodiments the helical aspect comprises a longitudinal twist 1145, 1245 between the first ends 1110, 1210 of the handles and the second end 1120, 1220 of the handles. In certain embodiments the helical aspects comprise at least a 60-degree longitudinal twist 1145, 1125 between the first ends 1110, 1210 of the handles and the second ends 1110, 1210 of the handles. In further embodiments still, the helical aspects comprise a 90-degree longitudinal twist between the first ends of the handles 1110, 1210 and the second ends 1110, 1210 of the handles. In certain embodiments it may be desired for the second end 1120, 1220 of the ratcheting wrenches to comprise a planar surface 1141, 1142 which is parallel to the drive axis 1300 to provide increased surface area for a user's hand and thereby provide increased comfort. In certain embodiments wherein a handle comprises an oblong cross-sectional profile 1142, 1142 as seen in FIG. 5D, in certain embodiments a wider aspect of the cross-sectional profiles 1142, 1242 second ends 1120, 1220 of the handles are oriented to be vertical or otherwise substantially parallel to the drive axis 1300.

[0055] In certain embodiments a ratcheting wrench 1000 comprising a first handle 1100 and a second handle 1200 is configured to connect directly to a threaded fastener 9000 as found with a ratcheting box wrench such as taught by the '869 Patent and Lang. A ratcheting wrench of such embodiments of the present invention comprises a first handle 1100 with a first end 1110 interconnected with a first ratcheting mechanism 1150, and a second handle 1200 with a first end 1210 interconnected with a second ratcheting mechanism 1250. The first ratcheting mechanism 1150 is coaxially interconnected with the second ratcheting mechanism 1250 along a drive axis 1300 wherein the first ratcheting mechanism 1150 and the second ratcheting mechanism 1250 are configured to rotate independently of each other. The ratcheting mechanisms 1150, 1250 comprise a drive recess 1340 comprising a hexagonal shaped, a 12-point shape, or other shape adapted for receiving a threaded fastener 9000 therein coaxially located with the drive axis 1300. To turn a fastener 9000 in a first direction, the fastener is inserted through a first end 1341 of the drive recess, and to reverse the action of the ratcheting mechanisms, a user simply inserts the threaded fastener through second end 1342 of the drive recess. The handles 1100, 1200 are able to be used as a unitary handle in an aligned configuration 1030, and as independent handles in a misaligned configuration 1040. In certain embodiments the first handle 1100 further comprises an open box wrench 1500 at a second end, while alternate embodiments comprising a closed box wrench are also within the spirit and scope of the present invention.

[0056] In certain embodiments, as shown in FIG. 7A-FIG. 7B, a ratcheting wrench 1000 comprises a first handle 1100 and a second handle 1200 wherein the first handle 1100 comprises a longitudinal recess 1145 configured to receive the second handle 1200 therein. Accordingly, when the handles are used in concert as a unitary handle in an aligned configuration 1030, the second handle 1200 is stowed within the recess 1145 of the first handle. As desired, the user can remove the second handle 1200 from within the first handle 1100 for use independently of the first handle 1100.

[0057] In certain embodiments of the present invention, as shown in FIG. 2A-FIG. 3B for instance, a ratcheting wrench 1000 comprises two handles 1100, 1200 and each of the two handles are interconnected with a ratcheting mechanism 1150, 1250, each comprising a geared aspect 1170, 1270. The geared aspects 1170, 1270—such as shown in FIG. 8A-FIG. 8D for instance—comprise a number (N) of gear teeth 1180, 1280. The gear teeth 1180, 1280 comprise a circular pitch (p) wherein the circular pitch is directly related to the angular engagement of the ratcheting mechanism. The ratcheting mechanism has a radius (r), and a circumference of the geared aspect is (c)—wherein (c) is the product of 2π(r)—the angular engagement (a) is represented by the following expression:

[00001]$\alpha =\frac{p}{c}⨯360$

[0058] When the handles are in an aligned configuration 1030, the gear teeth 1180 of the first ratcheting mechanism are configured to be offset from the gear teeth 1280 of the second ratcheting mechanism by a distance of (½p). Thus, when the pawl 1160 of the first ratcheting mechanism is disengaging from a gear tooth 1180, the pawl 1260 of the second ratcheting mechanism is engaging with a gear tooth 1280. Accordingly, a new tooth 1180, 1280 is engaged every (½p) distance and the circular pitch (c) is effectively reduced by half for the assembly of the first ratcheting mechanism 1150 and the second ratcheting mechanism 1250. Accordingly, the angle of engagement (a) of the ratcheting wrench 1000 is effectively reduced by half.

[0059] Certain embodiments of the present invention comprise a compound ratcheting wrench, as shown in FIG. 9A-FIG. 9C for instance, wherein a ratcheting wrench 1000 comprises a handle 1100 having a first end 1110 interconnected to a ratcheting mechanism 1150. In certain embodiments the ratcheting mechanism 1150 comprises a square-drive recess 1340 on a first side 1151 configured to receive a square-drive tang 6330 of an existing socket wrench 6000. The ratcheting mechanism 1150 further comprises a square-drive tang 1330 on a second side 1152 configured to interconnect with a wrench socket 9100. Accordingly, a user can interconnect the existing socket wrench 6000 to the ratcheting wrench 1000 to allow use in concert as individual handles in applying torque to a wrench socket 9100 to apply torque to a threaded fastener 9000. In certain scenarios, it may be desired to use a socket extender 9200 as shown. While embodiments shown herein comprise a socket wrench with a square-drive tang 6330 and a square-drive recess 1340, alternate embodiments comprising a ratcheting wrench 1000 with a first square-drive recess 1340 and a second square-drive recess 1340, or a first square-drive tang 1330 and a second square-drive tang 1330 are within the spirit and scope of the present invention.

[0060] Certain embodiments of the present invention comprise an adaptor 3000 having a square-drive tang 1330 at a first end 3010 adapted for interconnecting to a wrench socket 9100, a square-drive recess 1340 at a second end 3020 configured to receive a square-drive tang 6330, and a hexagonal aspect 3030 at an intermediate aspect 3050. Alternate embodiments wherein the intermediate aspect 3050 comprises a splined or lobed aspect configured to interconnect with a wrench are within the spirit and scope of the present invention. The adaptor 3000 is configured to allow the interconnection of a ratcheting box wrench 6100 and a ratcheting wrench 6000 comprising a square-drive tang 6330 thereto for use in concert. In certain embodiments, the adaptor comprises a mechanical stop 3100 between the intermediate aspect 3050 and the square-drive tang 1330 to prevent the slippage of the box wrench 6100 from the intermediate aspect 3050 toward the second end 3020.

[0061] While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention. Further, the inventions described herein are capable of other embodiments and of being practiced or of being carried out in various ways. In addition, it is to be understood that the phraseology and terminology used herein is for the purposes of description and should not be regarded as limiting. The use of “including,” “comprising,” or “adding” and variations thereof herein are meant to encompass the items listed thereafter and equivalents thereof, as well as, additional items.