摘要:
A timepiece has a case band having a front side end part that projects inwardly toward the hollow interior of the case band and terminates in a front opening. A case back is detachably attached to a back side end part of the case band. A glass is fixed to an annular edge member that seats on a front face of the front side end part. The edge member has a tubular part slidably inserted into the front opening and threadedly engaged with an annular attaching member in the interior of the case whereby the front side end part of the case band is sandwiched and held between the edge member and attaching member. By detaching the case back and using a tool to unthread the attaching member from the edge member, the edge member and glass can be removed as a unit from the case band for repair or replacement.
摘要:
A watch is offered in which there is no danger that the waterproofness is impaired by manipulation of the crown. The watch permits replacements of parts around the crown in a case where the threadedly locking function has deteriorated. The watch is based on a watch in which the crown is threadedly locked to a stem pipe mounted to a barrel. The barrel is provided with a pipe installation hole and with a threaded hole rectangularly in communication with this installation hole. The stem pipe has an insertion portion and a barrel outside protruding portion. The insertion portion is inserted in the pipe installation hole such that the insertion portion can be withdrawn from outside the barrel. The barrel outside protruding portion is disposed outside the barrel and has an external thread to which the crown is removably threaded. An engaging recessed portion is formed in the outer surface of the insertion portion. Annular waterproof packing is sandwiched between the pipe installation hole and the insertion portion. A mounting screw is threaded into the threaded hole so as to be movable back and forth. A front-end portion of this screw is inserted in the engaging recessed portion, and the stem pipe is held to the barrel.
摘要:
To provide a timepiece whose bezel can be easily attached and detached by a user without requiring a special-purpose tool. A male screw, an annular groove disposed downwardly away from the male screw and an annular clearance groove positioned between the annular groove and the male screw are provided on the outer periphery of an annular convex of a case band to which a cover glass is attached. A soft and resilient engagement ring is fitted to the annular groove such that the engagement ring projects out from the annular groove. A bezel includes on its inner periphery a female screw disposed within the clearance groove for releasably engaging with the male screw and an annular engagement convex having a stopper slope. The stopper slope is disposed below the female screw to tightly contact with the outer periphery of the ring. The bezel attached in a condition in which the ring tightly contacts with the stopper slope is rotated in a loosening direction of the bezel through a screw-engagement between the screws. Subsequently, the engagement convex passes through the ring upwardly to be positioned above the ring, and the bezel is finally separated.
摘要:
A watch is offered in which the life of the threadedly engaged portion between the stem pipe and the crown can be improved and which has an internal thread capable of being machined relative to the crown easily and accurately. The watch is based on a watch in which the crown is threadedly locked to a stem pipe mounted to a barrel. The stem pipe has a barrel outside protruding portion provided with an external thread. The crown has a crown shaft and a crown ring having an internal thread removably threaded to the external thread, the ring being connected to the crown shaft. The crown shaft has a barrel insertion cylindrical portion which is smaller in diameter than the crown ring and inserted in the stem pipe and a ring connection portion mounted integrally with this cylindrical portion and connected to one end portion of the crown ring.
摘要:
To provide a portable timepiece capable of interchanging a part at a surrounding of a crown when a screw lock function is deteriorated. A premise is established by a portable timepiece screwing to lock a crown urged in a direction of separating from a case body by a coil spring (urging member) included in a winding stem pipe to the winding stem pipe attached to the case body. The winding stem pipe includes a winding stem pipe main body inserted into a pipe attaching hole of the case body and fixed in liquid tight by using a brazing member, and a ring fitted to a case body outside projected portion of the main body removably by being stopped to rotate and provided with a male screw portion to which the crown is removably screwed at an outer periphery thereof. A ring holding member is pinched between the ring and a holding portion of the case body outside projected portion. The ring holding member holds the ring at an outer periphery of the case body outside projected portion and releases the ring from being held thereby when an external force sufficient for releasing the holding state is exerted to the ring.
摘要:
To provide a wristwatch in which a band can be easily attached to or detached from a timepiece armor assembly. In a band connection part of a timepiece armor assembly, there are provided respectively a connection groove which opens respectively to a back face 11a and an end face of this connection part and whose interior is formed wider than an open end of the end face, and an engagement groove opening to the former groove. A fit part having a shape coinciding with the connection groove and detachably fitted to the connection groove is provided in an end part of a band attached to or detached from the band connection part. An engagement member, which is protruded into or retracted form an opposed face facing on the engagement groove under a state that the fit part has been fitted to the connection groove and thereby inserted into or detached from the engagement groove, is attached to the fit part. An engagement/disengagement operation body, which has an operation part disposed in an exposed face of the fit part exposed in the back face of the band connection part under the state that the fit part has been fitted to the connection groove, is attached to the fit part. The engagement member is attached to the engagement/disengagement operation body.
摘要:
A timepiece has an annular case band having a front side end part that protrudes radially inwardly toward the inside of a case band and defines a front opening of the case band. A case back is detachably attached to a back side end part of the case band. An annular edge member seats on a front surface of the front side end part and has a tubular part removably inserted into the front opening of the case and, the tubular part having an annular attaching groove that opens to an outer periphery of the tubular part, and a glass is fixed to the edge member. An elastically deformable open-ended snap ring is detachably attached to the attaching groove in an elastically deformed state, and the snap ring abuts a back surface of the front side end part of the case band so that the front side end part is held between the edge member and the snap ring. The snap ring is detachable from the attaching groove when elastically expanded by a tool inserted from the back side of the case band to enable removal of the edge member and glass as a unit from the case band for repair or replacement.
摘要:
A watch has a crown threadedly locked to a stem pipe mounted to a barrel. The barrel has a pipe installation hole and a threaded hole that extends perpendicular to and in communication with the pipe installation hole. The stem pipe has an insertion portion and a barrel outside protruding portion. The insertion portion is inserted in the pipe installation hole such that the insertion portion can be withdrawn from outside the barrel. The barrel outside protruding portion is disposed outside the barrel and has an external thread to which the crown is removably threaded. An engaging recessed portion is formed in the outer surface of the insertion portion. An annular waterproof packing is sandwiched between the pipe installation hole and the insertion portion. A mounting screw is threaded into the threaded hole so as to be removable back and forth. A front-end portion of the mounting screw is inserted in the engaging recessed portion to hold the stem pipe to the barrel.
摘要:
To provide a wristwatch in which a band can be easily attached to and detached from a case band without using an exclusive tool, in which a sufficient attachment strength with respect to the case band can be ensured, and moreover whose use feeling is good. Bow feet each of which has an attachment hole are protrusively provided in a case band, and a bow crotch receiving an end piece (case band connection end part) of a band capable of being attached to and detached from the case band so as to be capable of being put in and taken out is formed between the bow feet. An operation opening is provided in the end piece. A coupler having possessed a tubular rotation body and coupling axles is internally mounted in the end piece. The tubular rotation body has female screws, and the coupling axles are meshed with these female screws. The tubular rotation body is provided while facing on the operation opening, and manual-rotation-operated from an outside of the end piece. The coupling axles are locked to the end piece, and provided so as to be capable of being protruded and immersed with respect to an end face of the end piece in its width direction in accordance with the rotation of the tubular rotation body. The coupling axles having been protruded and immersed are inserted into and withdrawn from the attachment holes, so that an attachment/detachment of the band with respect to the case band is made possible.
摘要:
To provide a watch which can assure a smooth rotation operation of a crown, and in which it is possible to improve a durability and a workability of a mesh part between a winding stem pipe and a crown, and a life of a tool working the mesh part. A wristwatch, in which a crown is thread-locked to a winding stem pipe having been attached to a case band and a seal packing seals between the winding stem pipe and the crown, is made a premise. It is characterized in that the seal packing is provided while interrupting an invasion path of dusts with respect to a mesh part where the winding stem pipe has been meshed with the crown.