JPH0623988Y2 - Watch capsule - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a timepiece capsule forming a movement for supporting and storing mechanical parts such as a train wheel in a pointer type timepiece. An object of the present invention is to save a coupling member such as a screw by molding a lower plate and an upper plate forming a capsule with a resin and connecting them by utilizing the elasticity of the lower plate or the upper plate. This will be described with reference to the drawings.

1 is a perspective view of a capsule according to the present invention, and FIG. 2 is a first view.
FIG. 3 is a perspective view of the lower plate of the figure, and FIG. 3 is a perspective view of the upper plate of FIG.

Reference numeral 1 is a lower plate formed of resin, and 2 is a battery chamber integrated with the lower plate 1. Reference numeral 3 denotes an upper plate formed of resin. The upper plate 3 is assembled and fixed to the lower plate 1 by the operation in the direction of the arrow 4 to form a capsule with 1 and 3. The capsule is composed of a lower plate 1 and an upper plate 3 which face each other's joint surfaces 5 and are elastically coupled to each other. Reference numeral 6 in FIG. 2 denotes a lower wall which surrounds the lower plate 1 and stands below the joint surface 5-1 of the lower plate 1. Reference numeral 7 denotes an inner wall that is retracted inwardly of the lower wall 6 and integrally rises from the lower wall 6 over the joint surface 5-1 and surrounds the lower plate 1. Reference numeral 8 is a hook which is located on the inner wall 7 of the lower plate and protrudes outward. The hooks 8 perform the elastic coupling described above, and are provided on the inner wall 7 in an appropriate number. Reference numeral 9 denotes an upper slope of the hook 8 for facilitating a connecting work described later. Reference numeral 10 denotes a circuit mechanism chamber of the lower plate 1 in which a train wheel or the like is supported and stored. The groove 11 in the lower wall 6 on the lower side of the hook 8 is a mark of the core that has entered when the hook 8 is molded. The inner wall 7 and the lower wall 6 surround the lower plate 1 to form a box shape. The hook 8 is provided between the upper surface 12 of the inner wall 7 and the joint surface 5-1 and is protected. At the time of assembly, which will be described later, the box shape itself of the lower plate 1 is elastically deformed inward. Since the arm-shaped hook that is conventionally seen is not projected above the lower plate 1,
There is no hindrance to the damage to the hooks and no obstacles to the automatic feeding of the arms. Reference numeral 5-3 in FIG. 3 is a joint surface of the upper plate 3. Reference numeral 13 is an outer wall that surrounds the upper plate 3 and that descends to the joining surface 5-3 of the upper plate. 14 is the outer wall 13
It is a window provided in the part. The windows 14 are elastically coupled to each other and are provided in a number suitable for the outer wall 13. The hole 15 on the upper surface is a mark of the core that entered when the window 14 was butt-processed. The outer wall 13 surrounds the upper plate 3 to form a box shape. The upper plate 3 cooperates with the lower plate 1 to support and store a train wheel or the like. The window 14 is within the width of the outer wall 13 and is protected. At the time of assembly, the box shape itself of the upper plate 3 is elastically deformed to the outside. Since an arm-shaped elastic piece having a window, which is conventionally seen, is not projected below the upper plate 3, damage to the window is prevented.
The arm-shaped elastic piece does not interfere with the automatic supply.

The capsule is assembled as follows. The upper plate 3 is lowered relative to the lower plate 1 in the direction of arrow 4 in FIG. The inner surface of the outer wall 13 of the upper plate fits snugly with the surface of the inner wall 7 of the lower plate. At this point, the lower plate 1 and the upper plate 3 are used to temporarily support the tenon of the train wheel. When the upper plate 3 is further lowered, the joint surface 5-3 of the upper plate
The inner angle of the hook is on the upper slope 9 of the hook of the lower plate. Here, elastic deformation of the box occurs. The box of the lower plate 1 will be deformed inward,
The box of the upper plate 3 is deformed outward. At the same time when the window lower frame 16 of the upper plate 3 passes through the hook 8, both boxes are elastically returned to the original state and snapped together. Window bottom frame 1 after assembled
6 can be securely held under the hook 8. In this combined state, the outer wall 13 surrounds the inner wall 7 of the lower plate on the upper plate,
The capsules are formed by facing the joint surfaces 5 of each other.
Further, the inner wall surface 17 above the hook 8 blocks the entry of dust through the window 14. The present invention utilizes the deformation of the box itself without providing a specific elastic arm or the like for connection. Not only is it convenient to prevent damage and supply as described above, but it can be provided with a large hook because the range of elastic deformation can be wide as a box itself, and also has a large elasticity itself to form a robust capsule. In addition, in the type in which the shaft for attaching the pointer projects below the lower plate 1, the force for attaching the needle is applied to the upper plate 3 in the direction of the arrow 18, but this force is applied to the outer wall 13 of the upper plate 3 by the downward direction. It acts to press against the inner wall 7 of the plate 1. This is expected to have the effect of preventing the upper plate 3 from coming off due to the needle attaching force. In the above description, the box elasticity is described as both the lower plate 1 and the upper plate 2, but even one of them has a corresponding effect. Further, although the lower plate 1 is said to include the battery chamber 2, the battery chamber 2 can be formed by extending the upper plate 3. Furthermore, what is called the lower plate 1 and the upper plate 3 is according to the drawings, and the configuration may be completely reversed and includes this.

According to the present invention, since the upper plate can be configured so as not to have the protruding portion which exceeds the joint surface, the present invention eliminates the tongue-shaped protrusion that causes the entanglement in the automatic supply of the case and hinders the automatic assembly. In addition, there is an effect that the structure of the molding die can be simplified (the parting line of the upper plate die can be made to coincide with the joining surface), and the timepiece capsule can obtain a robust elastic connection.

[Brief description of drawings]

1 is a perspective view of a capsule according to the present invention, and FIG. 2 is a first view.
FIG. 3 is a perspective view of the lower plate of the figure, and FIG. 3 is a perspective view of the upper plate of FIG. 1 ... Lower plate, 3 ... Upper plate, 5 ... Joint surface of each other, 5-1 ...
... Joining surface of lower plate, 5-3 ... Joining surface of upper plate, 6 ... Lower wall, 7 ... Inner wall, 8 ... Hook, 13 ... Outer wall, 14 ...
…window.

Claims (1)

[Scope of utility model registration request] 1. A timepiece capsule is composed of a lower plate and an upper plate, both of which are made of resin, and are elastically coupled to each other so as to face each other's joint surfaces formed so as to form a plane. An inner wall that surrounds the periphery and recedes inward with respect to a lower wall that stands below the joint surface of the lower plate and that stands integrally around the periphery beyond the joint surface of the lower plate from the lower wall; The plate has an outer wall that surrounds the periphery and descends to the joint surface of the upper plate, and has an outer wall that does not have a projection downward from the joint surface, and in the combined state, the outer wall of the upper plate is outside the inner wall of the lower plate. Should be formed so as to surround the lower plate, that the inner wall of the lower plate has a hook protruding outward, that the outer wall of the upper plate has a window, and that the lower plate and the upper plate Are characterized in that their joint surfaces face each other and the hook and the window are joined by elastically engaging each other. Watch for the capsule.