JPH0593884U - Anti-shake device for writing tip - Google Patents

Abstract

(57) [Summary] [Purpose] Since the writing tip is locked by the elastic ring, even if there is a gap between the tip inner diameter of the barrel and the writing tip, it will not rattle during writing. [Structure] An elastic ring having an inner diameter slightly smaller than the outer diameter of the writing tip is engaged with a locking step provided in the tip of a barrel.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to prevention of rattling of a writing tip during writing.

[0002]

[Prior Art]

 Conventionally, in a writing instrument having a retractable mechanism such as a ballpoint pen or a ball-point pen having a pencil-type writing tip end fixed, the writing tip is projected or retracted through a tip hole slightly larger than the tip outer diameter of the writing tip. It was protruding.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned conventional type causes rattling because the inner diameter of the tip hole of the barrel is slightly larger than the outer diameter of the writing tip when writing, and there is rattling noise especially when the tip is metal, which causes discomfort. There were drawbacks such as giving. In addition, in order to eliminate this rattling, the outer diameter of the writing tip and the inner diameter of the tip hole of the barrel need to be highly accurate.

[0004]

[Means for Solving the Problems]

 The wobble prevention device of the writing tip portion according to the present invention solves these drawbacks. A locking step portion is provided with an elastic ring having an inner diameter slightly smaller than the outer diameter of the writing tip portion. Is engaged with.

[0005]

[Action]

 With the above structure, the writing tip is locked by the elastic ring, so there is no rattling during writing.

[0006]

【Example】

 An embodiment of a device for preventing shake of the writing tip according to the present invention will be described with reference to the drawings. An elastic ring 1 having an inner diameter slightly smaller than the outer diameter of the writing tip 4 of a writing body 6 and a tip 2 of a barrel 3 are described. It is fixed by engaging with a locking step portion 5 provided inside, and when a writing instrument is used, a writing rod (not shown) is pushed so that the writing tip portion 4 gets over the elastic ring 1. The writing is made possible by protruding from the tip end hole 7 of the shaft tube 3, the writing tip 4 does not shake due to the action of the elastic ring 1, and rattling noise does not occur.

[0007]

[Effect of the device]

 As described above, the wobbling prevention device of the writing tip according to the present invention eliminates the rattling sound that the writing tip and the tip hole of the barrel contact when writing, and the writing tip is locked by the elastic ring. Some variation in the inner diameter of the tip hole of the barrel and the outer diameter of the writing tip is allowed.

[Brief description of drawings]

FIG. 1 is a partially omitted vertical sectional view of an example of a shake preventing device for a writing tip according to the present invention.

[Explanation of symbols] 1 elastic ring 2 tip of shaft cylinder 3 shaft cylinder 4 writing tip 5 locking step 6 writing body 7 shaft cylinder end hole

Claims (1)

[Scope of utility model registration request] 1. A wobbling prevention device for a writing tip, wherein an elastic ring having an inner diameter slightly smaller than the outer diameter of the writing tip of a writing body is engaged with a locking step provided in the tip of a barrel.