JPS6329273Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a mounting structure for a watch body.

[Conventional technology]

Traditionally, there are clocks that use wood, stone, etc. as a frame. This type of watch has a mounting hole drilled in the frame, a mechanical mounting plate with a clock mechanism inserted into the hole, a glass rim on the front of the frame, and a rear frame on the back. They were attached to the mechanical body mounting plate in a state where they were in contact with each other, and the watch body was attached to the frame by sandwiching the frame.

[Problem that the invention attempts to solve]

Wood and stone generally have poor processing accuracy and it is difficult to drill mounting holes with high precision. According to the above-mentioned conventional technology, it is not possible to align the center of the watch body with the center of the mounting hole and attach it to the frame body. The problem was that it was extremely difficult. This problem is particularly serious when the frame is made of wood because it expands or contracts depending on outside air conditions such as humidity.

An object of the present invention is to provide a watch body mounting structure that allows the center of the watch body to be easily and accurately aligned with the center of the mounting hole.

[Means for solving problems]

The features of this invention include a frame with mounting holes,
a mechanical body mounting plate that is inserted into the mounting hole and includes a watch mechanical body and a dial; a pointer that is attached to the watch mechanical body; and a pointer that is attached to the front surface of the mechanical body mounting plate and provided on the outer periphery. A glass edge whose extension part is locked to the front surface of the frame body, a front cover which is held between the machine body mounting plate and the glass edge, and a front cover which is attached to the back surface of the machine body mounting plate and provided on the outer periphery thereof. a rear frame whose flange portion is engaged with the back surface of the frame body; the frame body is provided with at least one positioning groove for positioning the machine body mounting plate; and the outer circumference of the machine body mounting plate is provided with a plurality of elastic arms extending in the circumferential direction, and a locking protrusion that comes into contact with the inner surface of the frame is formed at the tip of the elastic arm, and the locking protrusion At least one of them protrudes radially relative to the other, and this protruding locking protrusion engages with the positioning groove.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 2 and 3, the frame 1 is made of wood in this embodiment, and has a mounting hole 2 formed through it in the center. And on the inner wall of mounting hole 2,
Two positioning grooves 3, 3 are formed in this embodiment. As shown in the first diagram, 4 is a watch body, a mechanical mounting plate 5 is inserted into the mounting hole 2, and a frame body 1 is screwed to the mechanical mounting plate 5 and attached to the outer periphery of the front surface.
A glass edge 6 with an extension that locks onto the front surface of the machine, a transparent cover 7 held between the machine body mounting plate 5 and the glass edge, a facing 8, a dial plate 9, and a machine body mounting plate 5.
A watch mechanism body 10 attached to the back of the watch body, a pointer 11 attached to the pointer shaft of the watch mechanism body, and a reference hand 12
It is formed from etc. As shown in FIGS. 4 and 5, the mounting plate 5 of the watch body 4 has four elastic arms 51, 52, 53, 54 extending circumferentially on the outer periphery.
is provided. These elastic arms can be elastically deformed toward the center of the watch body 4. Locking protrusions 51a, 52a, 53a, and 54a are formed at the distal ends of the elastic arms 51, 52, 53, and 54. Locking protrusions 51a, 52a, 53a, 54a
protrudes outward from the inner diameter of the mounting hole 2 of the frame 1 and can come into elastic contact with the inner wall of the mounting hole 2. The locking protrusions 51a, 52a are capable of engaging with the positioning grooves 3, 3 of the mounting hole 2, and protrude slightly larger in the radial direction than the other locking protrusions 53a, 54a. The locking protrusions 51a and 52a are formed to be offset upward from the horizontal center line of the watch body 4, so that the watch body 4 is not installed upside down. In addition, the rear ends of the locking protrusions 51a, 52a, 53a, and 54a are
It is tapered so that it can be easily inserted into the mounting hole 2. Locking protrusions 51a, 52a, 53a, 54a
are located on the same radius from the center of the watch body 4, and the locking protrusions 53a and 54a are located on the same radius as the locking protrusion 51.
It is located on the same radius slightly inside of a and 52a. And elastic arms 51a, 52a, 53
The spring forces of a and 54a are approximately equal. 13
is an inner lid, which is screwed to mounting bosses 5e of the mounting plate 5. Reference numeral 14 denotes a rear frame, which is screwed to mounting bosses 5f, 5f of the machine body mounting plate 5, and has a collar portion 14a provided on the outer periphery of the back surface, which is engaged with the back surface of the frame body 1. The watch body 4 is fixed with the frame 1 sandwiched therebetween by the extending portion 6a of the glass edge 6 being engaged with the front surface of the frame 1.

Next, the assembly of the present invention will be described.

First, assemble the watch body 4. That is, the timepiece mechanical body 10 is attached to the mechanical body mounting plate 5, and after the dial plate 9 is attached, the hands 11 and the guide hands 12 are attached.
A facing 8 and a transparent cover 7 are placed in front of the machine body mounting plate 5.
After the glass edges 6 are brought into contact with each other, the glass edges 6 are screwed and fixed to the machine body mounting plate 5. The watch body 4 is thus assembled, but at this time the inner cover 13 may be screwed to the mechanical body mounting plate 5. And the locking protrusion 51
a, 52a are aligned with the positioning grooves 3, 3, and the watch body 4 is inserted into the mounting hole 2 of the frame body 1 from the front. Locking protrusions 51a and 52 protruding from the outer periphery of the watch body 4
a, 53a, 54a have their tapered parts abutting the edge of the mounting hole 2, and the elastic arms 51a, 52a, 53a,
54a is pushed in while being in elastic contact with the inner wall of the mounting hole 2, and the protrusion 6a of the glass edge 6 contacts the front surface of the frame 1. At this time, the locking protrusions 51a, 52a are engaged with and in elastic contact with the positioning grooves 3, 3 on the inner wall of the mounting hole 2, and the locking protrusions 53a, 54a are in elastic contact with the inner wall. For this reason, the four elastic arms allow the watch body 4
The center of the mounting hole 2 coincides with the center of the mounting hole 2, and the locking protrusions 51a and 52a engage with the positioning grooves 3 and 3, so that absorption can be achieved and tilting can be prevented. Further, even if the inner diameter of the mounting hole 2 changes slightly, it can be absorbed by the elastic arm, and deviation and tilting can be prevented.
Thereafter, the rear frame 14 is screwed to the mechanical body mounting plate 5, and the watch body 4 is attached to the frame body 1.

[Effect of idea]

As described above, according to the present invention, positioning is performed at the same time as the locking protrusion makes elastic contact with the inner wall of the mounting hole, so that the center of the watch body is accurately aligned with the center of the mounting hole formed in the frame. Can be easily installed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a sectional view, Fig. 2 is a front view of the frame, and Fig. 3 is a cross-sectional view of the frame.
A line sectional view, FIG. 4 is a rear view of the watch body, and FIG. 5 is a bottom view of the watch body. 1...Frame body, 2...Mounting hole, 3...Positioning groove, 5...Machine body mounting plate, 6...Glass edge, 6a
...Extending portion, 7...Front cover, 9...Dial board,
10...Watch mechanical body, 11...Pointer, 14...Rear frame, 14a...Brim portion, 51, 52, 53, 54
...Elastic arm, 51a, 52a...Lock protrusion projecting in the radial direction, 53a, 54a...Lock protrusion.

Claims (1)

[Claims for Utility Model Registration] A frame body provided with a mounting hole, a mechanical mounting plate inserted into the mounting hole and comprising a watch mechanical body and a dial, and a pointer attached to the watch mechanical body. and,
a glass rim that is attached to the front surface of the machine body mounting plate and has an extension part provided on the outer periphery that engages with the front surface of the frame body; and a front cover that is held between the machine body mounting plate and the glass rim. , a rear frame that is attached to the back surface of the machine body mounting plate and has a collar part provided on the outer periphery that is locked to the back surface of the frame body, and the frame body is provided with a rear frame for positioning the machine body mounting plate. At least one positioning groove is provided, and a plurality of elastic arms extending in the circumferential direction are provided on the outer periphery of the machine body mounting plate, and a tip of the elastic arm is attached to the inner surface of the frame. A locking protrusion is formed to abut, at least one of the locking protrusions protrudes radially relative to the other, and the protruding locking protrusion engages with the positioning groove. The mounting structure of the watch body.