EP-4372483-B1 - WATCH CASE WITH REPLACEABLE MOVEMENT

EP4372483B1EP 4372483 B1EP4372483 B1EP 4372483B1EP-4372483-B1

Inventors

ZHANG, JIANMIN
JIANG, XIN
LI, XIANGYU
LIU, JUN
HU, Chongzhu
WU, Tianchun
LIU, Rensong

Dates

Publication Date: 20260513
Application Date: 20230112

Claims (2)

A watch case (1) with a replaceable movement (2), being provided with a movement mounting structure, the movement (2) being able to be fixed to the case (1) through the movement mounting structure to realize fitting between the case (1) and different movements (2), wherein the movement mounting structure is a snap spring structure, the snap spring structure being at a side surface of an outer wall of the movement (2) and having at least one elastic spring (17) having an outer wall with a projection (18), the watch case with a replaceable movement being characterized in that an inner wall of the case has grooves (21) for receiving the projection (18), and wherein gaps (19) are provided at connecting positions between the movement (2) and the case (1) for moving back the elastic spring (17) to disengage the projection (18) from the grooves (21).
The watch case (1) according to claim 1, being further provided with a wearing assembly (3), the wearing assembly (3) being connected to the case (1) for securing a watch on the wrist.

Description

TECHNICAL FIELD The present disclosure relates to the technical field of watch cases, in particular to a watch case with a replaceable movement. BACKGROUND Existing watches, after being made, generally just has a fixed shape or style. For example, a mechanical movement is mounted in a case and only needs to be disassembled for repair after the movement or the case fails. With the development of society, watches have gradually become an ornament in people's lives, and consumers who are enthusiastic about watches may buy or collect watches. Consumers who love watches generally like to buy watches of different shapes, styles and colors, or watches of different colors or styles are needed to match the overall dressing style. It costs a lot of money for a wearer to buy a variety of watches. How to obtain watches of different styles by fitting fewer cases with movements of different styles, such as colors and shapes, so as to reduce the purchase pressure of consumers is an objective to be realized. Moreover, the ease of disassembly and replacement in the event of a case or movement failure is also not to be overlooked. FR2117887A discloses a wristwatch comprises an inner case portion which is provided with a side wall, a base, and a glass and is releasably fastened in a peripheral case portion so that the latter may be reversed with respect to the portion to present either of its different opposed faces to the viewer and thus alter the appearance of the watch. US2007/0253290 discloses a modular wristwatch includes a watch case assembly and a removable watch movement assembly. The watch case assembly includes an articulating bezel having a first bezel portion pivotally connected to a second bezel portion that enables the first bezel portion to move between open and closed configurations, allowing the watch movement assembly to be moved into and out from the watch case assembly. US2019/146417 discloses a system for fixing a timepiece movement to a watch case element including at least one clamp which is intended to come into contact firstly with the movement and secondly with the watch case element, and a device for modifying the stiffness of the at least one clamp, particularly for modifying the bending stiffness of the at least one clamp, when the movement is fixed and/or displaced relative to the watch case element. US2009/196124 discloses a portable device comprising a modular movement and a case, which includes a receptacle for removably receiving the modular movement without need for a tool, such that the modular movement is user-interchangeable with another case of another portable device. CH73935A and respectively discloses a watch and a wristwatch with interchangeable frame. JP S58-5265 Y2 discloses a watch case with a replaceable movement, having one groove for receiving a projection, and one gap at connecting position between the movement and the case. SUMMARY The objective of the present disclosure is to provide a watch case with a replaceable movement, in order to solve the problems mentioned in the background art. To achieve the above objective, the present disclosure provides the following technical solutions: A watch case with a replaceable movement is provided with a movement mounting structure, the movement being able to be fixed to the case through the movement mounting structure to realize fitting between the case and different movements, wherein the movement mounting structure is a snap spring structure, characterized in that: the snap spring structure being at a side surface of an outer wall of the movement at least has one elastic spring having an outer wall with a projection, and an inner wall of the case has grooves for receiving the projection, and wherein gaps are provided at connecting positions between the movement and the case for moving back the elastic spring to disengage the projection from the grooves. Further, the case is further provided with a wearing assembly, the wearing assembly being connected to the case for securing a watch on the wrist. Compared with the prior art, the present disclosure has the following technical effects: The case and the movement of the watch may be quickly disassembled for replacement, and one case may be correspondingly fitted with movements of different shapes and colors, thus making the watch have different visual effects. Convenience in operation is achieved, and a user can choose suitable cases and movements for matching and combination on different occasions according to different needs, thus avoiding the purchase of many different watches and reducing the financial pressure of purchasers. Repair and replacement may be conducted according to the need when the case, especially when the movement fails, which greatly improves the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic structure diagram according to the present disclosure.FIG. 2 is a schematic structural diagram according to Example 1 of the present disclosure.FI