Topic
Wrench
About: Wrench is a research topic. Over the lifetime, 12514 publications have been published within this topic receiving 71774 citations. The topic is also known as: spanner.
Papers published on a yearly basis
1 / 3
Papers
Patent•
30 Jan 1997
TL;DR: In this paper, a power ratchet wrench with a handle for gripping and holding the wrench and a head having a ratchet mechanism including a drive shaft capable of powered rotation about its axis is presented.
Abstract: A power ratchet wrench including a handle for gripping and holding the wrench and a head having a ratchet mechanism including a drive shaft capable of powered rotation about its axis. The head and handle have openings generally in registration with each other. A pin is received through the openings, interconnects the handle and head and permits pivoting movement of the handle and head relative to each other about the transversely extending longitudinal axis of the pin to any of a multiplicity of selected relative angular orientations. The pin includes a first section sized and shaped for locking the handle and head together in fixed angular orientation about the pin axis and a second section sized and shaped for permitting free relative pivoting motion of the handle and head. The pin is mounted for sliding motion relative to the head and handle in a direction transverse of the handle and head between a locked position in which the first section of the pin engages the handle and head and locks them together and an unlocked position in which the first section does not interengage the handle and head so that the head and handle are unlocked for relative pivoting motion about the pin axis. The ratchet wrench further includes a transmission constructed to transmit power from the motor to the ratchet mechanism through the pin interconnection of the handle and head.
670 citations
Patent•
20 Aug 1979TL;DR: In this paper, a jointed drive unit is provided having a power output shaft used for driving a socket or the like, and an input shaft which transmits power to the output shaft through a gearbox permitting any angular orientation between input and output shafts greater than about 20°.
Abstract: A jointed drive unit is provided having a power output shaft used for driving a socket or the like, and an input shaft which transmits power to the output shaft through a gearbox permitting any angular orientation between input and output shafts greater than about 20°. The mechanism is more than merely a gearbox for transmitting rotational motion at an acute angle because due to the gear arrangement and a ratchet mechanism incorporated in the preferred embodiment the output shaft can be made to rotate, not only by rotating the input shaft, but also by pumping the input shaft in a plane parallel to the output shaft, or alternatively, moving the input shaft back and forth in a plane perpendicular to the output shaft in conventional open end or box end ratchet wrench fashion.
551 citations
Patent•
7 Jun 1985
TL;DR: In this article, a vertebral body prosthesis containing at least one pair of oppositely disposed anchoring pins is used to stabilize a spinal column which has been rendered unstable by disease.
Abstract: A spinal stabilization device positionable between separated but neighboring vertebral bodies to stabilize a spinal column which has been rendered unstable by disease. The device includes a vertebral body prosthesis containing at least one pair of oppositely disposed anchoring pins which are advanced out of the prosthesis into the abutting vertebral bodies to secure the prosthesis to and between them. On its anterior side the prosthesis has an opening communicating with the pins inside the prosthesis. A wrench is inserted into the opening until it engages the pair of pins, and then the wrench is rotated to advance the pins into the abutting vertebral bodies. Detent pins bias the anchoring pins against the wrench and lock the anchoring pins in place when in their fully extended anchoring positions. Spacer members can be attached to the ends of the prosthesis thereby elongating it to accommodate separations between neighboring vertebral bodies of varying dimensions.
460 citations
Patent•
20 Mar 2003
TL;DR: An air powered wrench device with a pivotable head and associated method of using is described in this article, where a handle is pivotally attached to an arm via a pivot post.
Abstract: An air powered wrench device with a pivotable head and associated method of using. The device comprises a handle pivotally attached to an arm. The handle comprises a housing, an air intake nozzle, an air driven motor, a drive shaft, a ball bearing collar, a universal joint, an on/off button, a trigger switch, a directional throw switch, a lock pin, a spring, and a pivot post. The arm is pivotally attached to the handle via the pivot post. The arm includes: an outer casing, an extension rod, a ball bearing sleeve, a first pawl gear, a second pawl gear, and a bit connector. The method of using the device comprises the steps of adjoining, affixing, aligning, allowing, enshrouding, getting, moving, obtaining, putting, rotating, shifting, squeezing, and tightening.
343 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 35 |
| 2024 | 40 |
| 2023 | 89 |
| 2022 | 120 |
| 2021 | 85 |
| 2020 | 255 |