Screwdriver tool with a gear ratio
AssigneeWera Werkzeuge GmbH
InventorsMichael Abel, Max Steinmetz
Life of this patent
Estimating the term…
Abstract
A screwdriver tool including a gear ratio arranged in a handle for multiplying a rotation angle transmitted from the hand to a blade protruding from the handle. A blocking element can be rotated from a release position, in which a first handle section can be rotated relative to a second handle section for the purpose of quick-action screwing, into a blocking position, in which a blocking element secures the blade to the handle in a rotationally fixed manner. The switching between the release position and the blocking position occurs by means of a push-button arranged in the tip of the handle, which is moved back into its starting position in a spring-loaded manner after being actuated.
Claims15
A screwdriver tool comprising:
- a handle having a first handle section and a second handle section;
- a pushbutton that is axially displaceable from a starting position against a restoring force of a pushbutton spring;
- a transmission gearing, wherein the transmission gearing is arranged in the handle and is configured to multiply a rotation angle which is transmitted from the handle to a blade protruding from the handle or to a chuck for receiving a blade;
- a blocking element, which is movable from a release position into a blocking position by means of the pushbutton;
- wherein the blocking element in the blocking position secures the blade to the handle or the chuck to the handle in a rotationally fixed manner and is displaceable between the blocking position and the release position in a direction of an axis that extends along a length of the handle or along a length of the blade;
- wherein the pushbutton, upon a first actuation, displaces the blocking element into the blocking position with a switching element that is axially displaceable from a starting position;
- holding means configured to hold the switching element in the starting position, in which the switching element is displaced from the starting position, while holding the blocking element in the blocking position;
- and
- wherein the holding means are released from a holding position by means of a second actuation of the pushbutton.
A screwdriver tool, comprising:
- a transmission gearing having a first toothed wheel and a second toothed wheel;
- the transmission gearing being arranged in a handle;
- the handle including a first handle section and a second handle section, the second handle section being rotatable relative to the first handle section;
- the transmission gearing being configured to multiply a rotation angle transmitted from the handle to a blade protruding from the handle or to a chuck for receiving a blade;
- a blocking element that is movable from a release position into a blocking position, wherein the blocking element in the blocking position secures the blade or the chuck to the handle in a rotationally fixed manner;
- wherein the blocking element, which is assigned to the first handle section in a rotationally fixed manner, has a toothing that includes at least one tooth or tooth space and wherein in the blocking position, the toothing of the blocking element engages with a mating toothing;
- wherein the mating toothing includes at least one tooth space or tooth and is assigned to the second handle section or to a web of the transmission gearing in a rotationally fixed manner;
- wherein a ring body, which forms the mating toothing, supports axles of the second toothed wheels,
- wherein the blocking element is displaceable into the blocking position via a pushbutton against a restoring force of a blocking element spring that acts upon the blocking element in the direction of the release position, the pushbutton being arranged in a face side opening of the first handle section.
Dependencies are inferred from the claim text.