Robust wrench

Abstract

A wrench includes a handle, a clutch, a detent, a controller, a gear and a C-ring. The handle includes an annular head defining a circular space, a pothole not overlapping the circular space, a channel for communicating the circular space with the pothole, a recess and an annular groove both defined in a wall of the circular space. The clutch includes two claws put in the recess and a spring put between the claws. Each of the claws includes a toothed face and a rod. The claws can easily be put into the recess since the rods can be moved through the channel. A controller is put rotationally in the pothole for moving the rods. The gear is put in the circular space. The gear includes a toothed face for engagement with the toothed face of one of the claws. The C-ring includes an external edge put in the annular groove, an internal edge for retaining the annular gear in the circular space and a gate projecting from an upper face for blocking the channel.

1. A wrench including:
 a handle including an annular head defining a circular space, a pothole not overlapping the circular space, a channel formed in the annular head for communicating the circular space with the pothole, a recess and an annular groove both defined in a wall of the circular space with the circular space and the pot hole disposed meeting at a line of intersection; 
 a clutch including two claws disposed in the recess and a spring disposed between the claws, the claws each including a toothed face and a rod, wherein the claws can easily by inserted into the recess since the rods can be moved through the channel: 
 a controller rationally disposed in the pothole for moving the rods; 
 a gear disposed in the circular space, the gear including a toothed face engagement with the toothed face of one of the claws; and 
 a C-ring including an external edge disposed in the annular groove, an internal edge for retaining the annular gear in the circular space and a gate projecting from an upper face for blocking the channel. 
 
     
     
       2. The wrench according to  claim 1  wherein the gear is an annular gear including a toothed internal face. 
     
     
       3. The wrench according to  claim 1  wherein the gear includes an insert projecting from a lower face. 
     
     
       4. The wrench according to  claim 1  including a detent disposed in a hole defined in a bottom of the pothole, and the controller defines two recesses for receiving the detent. 
     
     
       5. The wrench according to  claim 1  wherein the controller includes a disc disposed rotationally in the pothole. 
     
     
       6. The wrench according to  claim 5  wherein the disc defines a recess for receiving the rods. 
     
     
       7. The wrench according to  claim 5  wherein the controller includes a ridge formed on the disc. 
     
     
       8. The wrench according to  claim 5  wherein the controller includes a C-ring with an internal edge disposed in an annular groove defined in the disc and an external edge disposed in an annular groove defined in a wall of the pothole. 
     
     
       9. The wrench according to  claim 5  wherein the controller includes a rod projecting from the disc and through an aperture defined in the annular head, an annular groove defined in the rod, and a C-Clip including an internal edge disposed in the annular groove and an external edge for abutment against the annular head. 
     
     
       10. The wrench according to  claim 5  wherein the controller includes a hole defined in the disc and a bolt driven into the hole through an aperture defined in the annular head. 
     
     
       11. The wrench according to claim 1 wherein the C-ring includes a gate projecting from an upper face for blocking the channel.