JPS61247404A - Concealing type engaging metal jig for band, especially, clock band - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Applicability] The present invention is a so-called hidden type metal fitting for bands such as bracelets, particularly watch bands, that is, the metal fitting is completely masked by the band in the closed position. , relates to a connecting fitting that ensures that the continuous appearance of the band is maintained.

This type of tether is used for articulated (hinged transverse links) or for bands consisting of links arranged in multiple columns (the links in each column are most often longitudinally offset from each other). BACKGROUND OF THE INVENTION A tether typically consists of three articulated sections: a central section and a half-length section hinged at the distal end of each section. and relatively short side portions, each side portion having a respective securing means for one band element, and each side portion having a length shorter than When folded back, it is immobilized relative to the top surface by cooperating locking means arranged on the central portion and each of the side portions.

Generally, the tips of the two band elements are positioned such that the tips of the band elements face each other in the closed position in the central region of the central portion, or the tip links of the two band elements are interdigitated with each other. It is attached directly to both side parts in a position that masks the connecting hardware and gives the bracelet a continuous appearance.

The disadvantage in this case is that one tether must be used for each type of armband, and the maximum opening amplitude of the tether depends on the position of each band element on the corresponding side portion of the tether. It is limited by.

[Problem that the invention seeks to solve]

An object of the present invention is to improve the opening degree for the same axial distance between the connecting parts of the side parts with respect to the center part of the connecting fitting, regardless of the type of link of the watch band used, compared to conventional watch bands. The purpose is to provide a concealed connecting fitting that can be made larger.

[Means for solving problems]

The tether according to the invention basically comprises an articulating shaft for the plate piece with means for fixing the band element at the tip of each side part opposite to the articulation with the central part, between a first extreme position in which each plate is folded back over the upper surface of the corresponding side portion and a second extreme position in which the plate lies substantially in extension on the cough side portion; It is characterized by being able to rotate relative to the side portion to which the plate piece is attached.

This second extreme position is the position where the plate piece is in the closed position of the connecting fitting.

According to a preferred embodiment B of the present invention, a recess is formed on the upper surface of each side portion of the connecting fitting near the plate piece, and the plate piece is at the second extreme position with respect to the side portion. The tip of the piece can be accommodated in this recess.

Next, preferred embodiments of the present invention will be described with reference to the drawings.

〔Example〕

The tether according to the invention basically consists of a central part 1 and two side parts hinged at both ends of the central part 1 by articulations 2 and each having a length less than half the length of the central part 1. 3.

A cooperating locking part is provided on the central part 1 and on each side part 3 in order to immobilize the side part 3 relative to the upper surface of the central part 1 after bending around the articulation part 2. .

According to the invention, this locking means may be of any type, but advantageously may be two projections 4 formed projecting on the upper surface of the central part 1, these projections comprising: An insert 6 made of non-metallic material can be engaged in an opening 5 suitably arranged in the thickness of the side part 3.

The detailed construction of this locking means is described in another French patent application of the same date by the applicant.

At the tip of each side part 3 a hinge element 7 for a rectangular plate 8 is arranged. The plate piece 8 has a hinge element 9 retainable between the two hinge elements 7 of the side part 3 of the tether, with an axis engaged and immobilized in the hinge elements 7.9 aligned with one another. The plate piece 8 is connected to the side part 3 via a hinge 10.

As can be seen, the line of articulation indicated by the axis 10 is not formed by the center line of the plate 8 (but is offset from this center line), so that on both sides of the articulation area there are different lengths. Two plate pieces 8a, 8b are formed (third a).
, see Figure 3b).

In the illustrated example, the plate piece 8 has a through hole 11 in its portion 8b.
, and these through holes form the band elements 13 on the plate piece 8.
A corresponding through-hole 12 formed in the band element 13 for fixing by fastening means not shown, for example screws or the like.
are aligned with

As a variant, the band element 13 may be fixed to the portion 8a of the plate piece 8.

As best shown in Figure 4a, each side portion 3 of the tether has a recess at its tip, near its point of articulation to the plate 3, of a size approximately corresponding to the size of the plate portion 8a. A recess 14 is provided so that the plate part 8a can be accommodated in this recess in the pivoted position shown in FIG. 4b. In this position, the plate piece 8, whose thickness corresponds approximately to the depth of the recess 14 in the side part 3, ensures that the side part and thus the inner surface of the band element 13 are continuous.

The extreme position shown in FIG. 4a of the plate 8 relative to the side part 3 corresponds to the maximum opening amplitude of the connecting piece.

The relative position of the plate 8 and the side parts 3 shown in FIG. 4b is realized in the closed position of the tether, in which each side part 3 is bent over the central part 1 of the tether and locked.

Thus, according to the invention, a concealment is provided with four articulations, namely the articulation of each side part 3 on the central part 1 and the articulation of each plate 8 on the corresponding side part 3. You can get the mold connecting fittings.

Each band element 13, instead of being fastened directly to the side part as is conventional, is fixed to a plate which is itself hinged to the side part 3 of the tether.

In this way, the opening stroke of the tether is larger and it is possible to use a single type of tether for all types of bands, since there is no need to design side parts for each band. It becomes possible.

[Brief explanation of drawings]

FIG. 1 is a top view of the tether according to the invention in the open position, FIG. 2 is a side view of FIG. 1, FIG. 3 is a side view of the tether during the closing stroke, and FIGS. 4a and 4b. 5 is a side view showing the first and second rotation limit positions of the plate piece, and FIG. 5 is a side view corresponding to FIG. 4b. Explanation of symbols 1...Central part 2...Connection part 3.
... Side part 4 ... Protruding piece (cooperating lock part) 5 ... Opening (cooperating lock part) 6 ...
...Insert (cooperating lock part) 8...Plate piece 11...Through hole (fixing means) 13...
...Band element

Claims (2)

[Claims] (1) Comparison of a hidden connecting fitting for a band, especially a watch band, with a central portion and a length shorter than half the length of the central portion hinged at each end of the central portion. and each said side portion, after being folded over the top surface of said central portion, is secured to said top surface by means of cooperating locking means disposed on said central portion and each said side portion. In those which are made to be immovable above, the connecting fittings are
A plate piece (
8) is provided at the tip of each side part (3) opposite to the joint (2) with the central part (1), and each plate piece (8) between a first extreme position in which the plate is folded back onto the upper surface of the corresponding side part and a second extreme position in which the plate lies substantially in extension of the side part;
A connecting fitting characterized in that the plate piece (8) is rotatable relative to the side portion (3) to which it is attached. (2) A recess (14) is formed on the upper surface of each side portion (3) of the connecting fitting near the connecting portion (10) of the plate piece (8), and a plate for the side portion (3) is formed. Said second piece (8)
2. Connecting fitting according to claim 1, characterized in that, in the extreme position, the tip part (8a) of the plate piece (8) can be accommodated in the recess (14).