Writing instrument
AssigneeSociete BIC
InventorLaurent Beaucher
Life of this patent
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Abstract
An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position. The erasable ink is a peelable ink and the eraser is a friction body.
Claims20
An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is axially fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position, wherein the helical-cam propelling mechanism comprises a first part and a second part, wherein the erasable ink writing instrument further comprises a writing body having the writing tip, wherein the first part is hollow, a support extends inside the first part and is axially coupled with the second part, and the support supports the writing body, and wherein the writing body is removably mounted to the support.
An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is axially fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position, wherein the helical-cam propelling mechanism comprises a first part and a second part, wherein the erasable ink writing instrument further comprises a writing body having the writing tip, wherein the first part is hollow, a support extends inside the first part and is axially coupled with the second part, and the support supports the writing body, and wherein the writing body is press-fitted to the support.
An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is axially fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position wherein the helical-cam propelling mechanism comprises a first part and a second part, wherein the erasable ink writing instrument further comprises a writing body having the writing tip, wherein the first part is hollow, a support extends inside the first part and is axially coupled with the second part, and the support supports the writing body, and wherein the support and the second part are unitarily formed.
Dependencies are inferred from the claim text.