Writing utensils with timing devices

Abstract

A writing instrument (10) with a timing device has a writing instrument (8) as a core holding member for holding a writing core for writing, holds the core holding member movably in the axial direction, and has a grip portion on a part of the outer periphery (22), the casing (12), the timing device provided on the casing (12) and having a liquid crystal display (34), a ratchet spring for applying a loading force in a direction in which the core holding member protrudes toward the writing front end side of the casing (60), and a switch part, which applies a pressing force to the writing core against the loading force, and detects that the core holding member and the writing core are moved to the opposite side as the writing front end side with respect to the housing (12). The end part, that is, the side of the terminal part, moves relative to each other in the axial direction to start the timing device.

Description

technical field [0001] The invention relates to a writing utensil with a timing device. Background technique [0002] As a learning method, unlike the method of taking time to solve a problem, a method of limiting time and concentrating on solving problems quickly is proposed. In this case, when performing the method alone, it is desirable to use a timing device such as a stopwatch and write on an answer sheet or the like. In order to cope with this situation, a scheme of setting a timing device on the writing utensil has been proposed. [0003] For example, Patent Document 1 discloses as a writing implement having a time measuring portion, a writing implement or a writing implement of a so-called mechanical pencil that uses a push-out operation to transport a lead by integrally assembling components having a time measuring function with a start / stop button. A structure in writing implements such as a so-called ballpoint pen having a ballpoint pen tip. [0004] Patent Doc...

AI Technical Summary

Problems solved by technology

[0008] However, since there is no change when using the writing utensil and the timing device separately, for example, when starting the timing device by hand, then turning the writing utensil upside down and writing on the answer sheet to solve the problem, and sometimes completing all the problem solving, it is necessary to use the The writing implement is removed from the hand, causing the timing mechanism to stop

Sometimes it may be considered to hold the writing utensil with a timing device with the right hand and operate the on / off of the timing device with the left hand, but the timing device integrated with the writing utensil is small, and the operation buttons are also small, and it is difficult to use the other inflexible hand. It is not convenient to operate

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