US 2003/0167880 A1 · Tool for wristwatch

Abstract

Substantially cylindrical head tube body 1, center tube body 2 and tip tube body 4 threadedly engaged each other to thereby construct tool main body 5 of tool for wristwatch 20. Through hole 2c of the center tube body 2 is provided with partition part 2e having small-diameter hole 2d and slant face 2f. Hammering member 7 and compression spring 6 are slidably accommodated in the through hole 2c. Trigger shaft 8 includes small-diameter part 8a, which can be inserted in center hole 7a of the hammering member 7, and large-diameter part 8c continuing therefrom through slant face 8b, which can pass through the small-diameter hole 2d. Deformed coil spring 9 has the large-diameter part 8c of the trigger shaft 8 fitted therein in wound form, and energizes the trigger shaft 8 toward sliding shaft 11 while slanting the trigger shaft 8 so as to cause the small-diameter part 8a to shift toward the inside wall of the tool main body 5. The sliding shaft 11 at its rear end includes large-diameter head part 11a and at its front end includes engagement part 11b to which a wristwatch tool component can be replaceably fixed. The engagement part 11b interlocks small-diameter hole 4c of the tip tube body 4 with a play, and the front end of the engagement part 11b protrudes from the tip tube body 4.

Claims25

Dependent claims

A tool for wristwatch, employed to remove a band connecting pin, a case back of wristwatch case or the like, said tool comprising:

a substantially cylindrical tool main body including, provided thereinside:
a sliding shaft having a front end adapted to permit replaceable securing of a wristwatch tool component, said sliding shaft having the front end protruding from the tool main body;
and
hammering means, said hammering means comprising:
a compression spring, and a hammering member adapted to be energized and slide toward the sliding shaft by the compression spring, and
a trigger member capable of-releasing spring force of the compression spring when the compression spring has reached a predetermined compression level,
said sliding shaft and said hammering means so arranged that instantaneous large force is applied to the wristwatch tool component by hammering the rear end of the sliding shaft by means of the hammering means.

4 more elements

A tool for wristwatch, employed to remove a connecting pin from a band connecting pin insertion hole of watchband, said tool comprising:

a substantially cylindrical upper tube body having an inside threaded part provided on an inside wall of lower end portion thereof and having an outside threaded part provided on an outside wall thereof,
a removing pin detachably and threadedly engaging the inside threaded part of the upper tube body, and
a substantially cylindrical lower tube body of taper outline being detachably fitted to a lower portion of the upper tube body by threadedly engaging an inside threaded part provided on an inner periphery of the lower tube body with the outside threaded part of the upper tube body,
the tool for wristwatch is so arranged that a length of protrusion of a front end portion of the removing pin from to a through hole of front end of the lower tube body can be adjusted by regulating a condition of threaded engagement of the inside threaded part provided on the inner periphery of upper end portion of the lower tube body with the outside threaded part of the upper tube body.

1 more element

Dependencies are inferred from the claim text.

Tool for wristwatch

Life of this patent

Tool for wristwatch

Life of this patent

Abstract

Claims25