Watch with ratcheting strap
A wristwatch is provided incorporating one of a plurality of possible case embodiments, such as, without limitation, mechanical and electronic movements, and a novel ratcheting buckle and corresponding strap, whereby the user may incrementally adjust fitment of the watch via a ratcheting mechanism embodied between the ratcheting buckle and strap. In an embodiment, the watch comprises a strap including a first strap portion and a second strap portion. The first strap portion comprises a linear rack and a plurality of teeth embedded in the linear rack. The second strap portion coupled to a buckle wherein the buckle comprises a pawl configured to slideably engage up to each of the plurality of teeth of the linear rack as the first strap portion is inserted through a buckle aperture and translated therethrough.
1. A watch with a ratcheting strap, comprising:
a buckle comprising:
a base, a linkage element, and a cam-lever,
the base being coupled to the linkage element via a combination of a first pin, and a spring,
the linkage element comprising a pawl, a loading-brace, and a fulcrum, the fulcrum being disposed between the pawl and the loading-brace, and
the cam-lever comprising a cam portion and a lever portion, wherein the cam-lever is coupled to the linkage element via a second pin;
a strap including a first strap portion and a second strap portion,
the first strap portion comprising a linear rack and a plurality of teeth embedded in the linear rack, and
the second strap portion coupled to the buckle; and
a case assembly coupled to each of the first and second strap portions;
wherein with the cam-lever in a collapsed configuration, the cam-lever is configured to engage the linkage-element at the loading-brace thereof for articulating the linkage-element and engaging the pawl at the teeth of the linear rack, wherein the first strap portion is slideably translatable through the buckle only in a first direction corresponding to tightening the strap with the cam-lever in the collapsed configuration; and
further wherein with the cam-lever in an open configuration, the cam-lever is configured to engage the linkage element at the loading brace thereof for lifting the loading-brace and dis-engaging the pawl from the teeth of the linear rack, wherein the first strap portion is slideably translatable through the buckle in each of the first direction and a second direction opposite the first direction with the cam-lever in the open configuration.
2. The watch of claim 1 , wherein the linear rack comprises a monolithic fabricated piece.
3. A watch with a ratcheting strap, comprising:
a buckle comprising:
a base and a linkage element,
the base being coupled to the linkage element via a first pin coupled to a fulcrum of the linkage element,
the linkage element further comprising a pawl, a lever, and a linkage element aperture, the linkage element aperture being disposed between the pawl and the lever;
a strap including a first strap portion and a second strap portion,
the first strap portion comprising a linear rack having a plurality of teeth, and
the second strap portion coupled to the buckleby a second pin and a spring wherein the second pin extends through openings of the spring, the spring configured to apply a spring bias force on the pawl; and
a case assembly coupled to each of the first and second strap portions;
wherein upon translation of the lever, the linkage element is configured to rotate about the fulcrum, and the pawl is released from engagement with of the linear rack such that the first strap portion becomes releasable from the buckle.
4. The watch of claim 3 , wherein the first strap portion comprises a single linear rack disposed along a center region of the first strap portion.
5. The watch of claim 3 , the first strap portion further comprising an inner strap surface and an outer strap surface opposite the inner strap surface, the inner strap surface being configured to contact a user's wrist, wherein the linear rack is disposed on the inner strap surface.
6. The watch of claim 3 , wherein upon translation of the lever away from the first strap portion the first strap portion becomes releasable from the buckle.
7. The watch of claim 3 , wherein the linear rack is disposed between the lever and the pawl during engagement of the pawl to the linear rack.
8. The watch of claim 3 , wherein the linkage element aperture is configured to receive the first strap portion.
9. A ratcheting strap for use with a watch, the ratcheting strap comprising:
a buckle comprising:
a base and a linkage element,
the base being coupled to the linkage element via a first pin coupled to a fulcrum of the linkage element,
the linkage element further comprising a pawl, a lever, and a linkage element aperture, the linkage element aperture being disposed between the pawl and the lever;
a first strap portion and a second strap portion,
the first strap portion comprising a linear rack having a plurality of teeth, and
the second strap portion coupled to the buckle by a second pin and a spring wherein the second pin extends through openings of the spring, the spring configured to apply a spring bias force on the pawl; and
wherein upon translation of the lever, the linkage element is configured to rotate about the fulcrum, and the pawl is released from engagement with the linear rack such that the first strap portion becomes releasable from the buckle.
10. The ratcheting strap of claim 9 , wherein the first strap portion comprises a single linear rack disposed along a center region of the first strap portion.
11. The ratcheting strap of claim 9 , the first strap portion further comprising an inner strap surface and an outer strap surface opposite the inner strap surface, the inner strap surface being configured to contact a user's wrist, wherein the linear rack is disposed on the inner strap surface.
12. The ratcheting strap of claim 9 , wherein upon translation of the lever away from the first strap portion the first strap portion becomes releasable from the buckle.
13. The ratcheting strap of claim 9 , wherein the linear rack is disposed between the lever and the pawl during engagement of the pawl to the linear rack.
14. The ratcheting strap of claim 9 , wherein the linkage element aperture is configured to receive the first strap portion.