Chain – staple – and horseshoe making – Chains – Ornamental
Patent
1990-01-22
1991-08-13
Jones, David
Chain, staple, and horseshoe making
Chains
Ornamental
59 84, 59 85, 63 4, F16G 1512
Patent
active
050385577
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a band for a watch, and more particularly to a watch band the length of which is adjustable to fit the watch to the wrist of the wearer.
Japanese Utility Mode Application Laid-Open 53-45065 discloses structure for connecting links of a watch band, which is shown in FIGS. 1 to 3.
The watch band comprises a link unit 4 consisting of a plurality of inner links 1 and a pin 3 rotatably engaged with a hole formed in each link 1, and a pair of outer links 2 secured to the pin 3 on opposite sides of the link unit 4. To assemble the link unit 4, an annular groove 3a formed on an end of the pin 3 is positioned so as to correspond to a staking portion 2a of the outer link 2. The staking portion 2a is pressed down by a press to project a protrusion 2b to the portion 3a, thereby fixing the pin 3 in the outer link 2.
However, the length of the band can not be adjusted, because the outer links 2 can not be removed. Therefore, an adjusting link having an adjusting function must be provided.
An object of the present invention is to provide a watch band which has a length adjusting function, whereby the operation for the connection or disconnection of the links is easily performed.
Another object of the invention is to provide a watch band in which color tones and patterns of links are easily changed.
DISCLOSURE OF THE INVENTION
The watch band of the present invention has a plurality of link units, each of the link units having an engaging projection projecting from one of sides of the link unit in the longitudinal direction of the band and a recess formed in the other side, corresponding to the engaging projection, adjacent link units being connected by engaging the engaging projection of one of the units with the recess of the other unit and is characterized in that each of the link units comprises a first link and a second link, each of the first and second links has a body and a projection projecting from an inner portion of the body in the lateral direction and the longitudinal direction of the band, the body has a hole extending in the lateral direction, the projection has a through hole extending in the lateral direction of the band, the projection of first link having a shape so as to form the engaging projection of the link unit by adjoining with the projection of the second link, a connecting pin is engaged with the hole of the body of the first link unit, with the through holes of the engaging projection of the second link unit adjacent to the first link unit, and with the hole of the second link of the first link unit, means is provided for preventing the first and second links from moving in the lateral direction of the band when the links are approximately co-planar, and for allowing the lateral movement of the links when both the links are relatively angularly displaced about the pin.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view of the reverse side of a conventional watch band;
FIG. 2 is a sectional view showing a staking portion of the watch band of FIG. 1;
FIG. 3 is a perspective view showing a connecting pin of the band of FIG. 1;
FIG. 4 is a perspective view showing the reverse side of a watch band according to the present invention;
FIG. 5 is a perspective view for explaining an assembling process of links of the band;
FIG. 6 is a sectional view partly showing a connecting pin and a link of the band in an engaged state;
FIG. 7 is a plan view showing a second embodiment of the present invention;
FIG. 8 is a plan view showing a third embodiment;
FIG. 9 is a perspective view explaining an assembling process of links of the third embodiment;
FIG. 10 is a plan view showing a fourth embodiment;
FIG. 11 is a plan view showing a fifth embodiment;
FIG. 12 is a plan view showing a sixth embodiment;
FIG. 13 is an exploded perspective view showing a link unit of the sixth embodiment;
FIG. 14 is a front view of a first link of the sixth embodiment partly shown in section;
FIG. 15 is a front view of a second link partly shown in section;
FIG. 16 is a p
REFERENCES:
patent: 4930304 (1990-06-01), Meister
Otsuki Shigeru
Ushikubo Kouji
Citizen Watch Co. Ltd.
Jones David
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