JPS63502407A - clasp for bracelet - 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] Esu Δ each pass clasp for bracelet Conventional technology Traditionally, one member of a bracelet clasp is made of a solid bar; The other member is tensioned by a spring with a protruding end that serves as a button or A device is known in which two sliders slide within the cage.

These traditional clasps can be beautifully attached to luxury watch bracelets. You have the advantage of coming. Moreover, these clasps are reliable and easy to open. It also has the advantage of being able to

2nd Shio The object of the present invention is to maintain the advantages of the conventional button-type clasp described above, while also providing a thin width and thickness. A special clasp that is easy to manufacture, inexpensive, and whose length can be adjusted freely. The object of the present invention is to provide a clasp that can be suitably used as a clasp for a bracelet. .

Composition of the invention In order to achieve the above object, the clasp of the present invention, particularly a clasp for a bracelet, In addition to having the function of fastening the wristlet, its length can be adjusted freely. It has a structure that allows it to be fixed at the adjusted length, and is equipped with a bar and a bracelet. a first component consisting of a small piece of sheet metal having means of connection to the end of the string; at least one elastically tensioned to engage the bolt of the first component; a second component having a cage with a slider fitted therein; and a second component interoperable with the second component. Features a pressing plate that moves and adjustably connects with the end of the bracelet. That is.

Brief description of the drawing Figure 1 shows a bracelet fitted with a known clasp with two sliders. Top view of both ends, Figure 2 is an exploded, enlarged perspective view of the components of the clasp in Figure 1, and Figure 3 is an exploded perspective view of the components of the clasp in Figure 2. A cross-sectional view along the line ■-■ in Fig. 4 of the clasp, Figure 4 is a sectional view of the above-mentioned clasp taken along line IV-IV in Figure 3, and Figure 5 is , a reduced perspective view showing a modification of the clasp shown in FIGS. 1 to 4; FIG. 6 is an exploded perspective view of one embodiment of the present invention, and FIG. 7 is a cross-sectional view of one embodiment of the present invention. It is a diagram.

Example FIG. 1 schematically shows an embodiment of the clasp described below.

The components of the clasp comprise a cage 1 with two sliders 2.3, as shown in FIG. As shown, the slider 2.3 above serves as a button and is attached to the bracelet. On the other hand, the outer end protrudes, and the slider 2.3 is placed perpendicular to the bracelet. It is slid in the opposite direction. The above bracelet is made up of interlocking elements. 5, the chain rings 4 are connected one by one. In the embodiment shown in FIG. With this, the auxiliary mating element 6 allows subtle length adjustment of the bracelet. are doing. When the auxiliary fitting element 6 is pulled out, half of the ring is fully braced. You can adjust the length of the let.

The cage l is composed of a single metal plate and has a flat rectangular outer shape. It is formed into a cylindrical shape. An open lower is provided on the bottom of the cage l, and one side is provided with an opening lower. The connecting member 8 is attached by soldering. Furthermore, the control shown in FIG. A slider made of pieces obtained by cutting out a metal plate into long strips using pegs 9. 2.3 is securely supported within the cage l. The slider 2.3 above is for cage 1. It is set according to the internal dimensions and is fitted inside the cage l. Above slider 2. 3 is also shown in FIG. Sliders 2 and 3 each protrude at their outer ends. It has protruding parts 2a and 3a, and has recessed parts 2b and 3b which become the edges of the bar at the other end inside. . A groove 10111 is carved in the width and thickness of each bar edge. each slider 2 or 3 is provided with connecting portions 2c, 3c on the peripheral edge on the side away from the bolt. one On the other hand, the shape of the grooves formed in these sliders urges the sliders outward toward each other. Utilizes sufficient horizontal space to store the coil spring 12 inside the cage l. It is said that The outer shape of the valley groove is such that it forms a groove part together with the inner wall of the cage l. Alternatively, the groove portion is configured to correspond to the other groove. As shown in Figure 3 , Due to the action of the coil spring 12, a bolt is applied between the bar edges of the recesses 2b and 3b, A portion of the periphery of the slider 3 is press-locked to a peg 9.

The other component of the clasp, shown in detail in FIGS. 2 and 4, is located on the underside of the cage l. It consists of a small thin plate 13 located at It is formed integrally with the connecting member 14.

On the thin plate 13, there is a so-called cylindrical peg shaped peg with a large diameter head 15a. 15 is fixed. The bolt 15 is pressed into the hole in the thin plate 13 as shown in FIG. The height of the head 15a is related to the groove l0111 of the slider 2.3. The height is set to match.

As shown in Fig. 3, if one of the protrusions 2a, 3a is pushed inadvertently, Also, set the other slider 3 or 2 so that cage 1 does not come off the bolt 15. Stop. To remove the bolt with sufficient safety, remove the protrusions 2a and 3a. It is necessary to press at the same time. In addition, as shown in Figures 3, 4, and 2, There are two types of attachment positions and shapes for the coupling members 14 and 8.

FIG. 5 shows another example of assembly using the same type of clasp.

From solid metal pieces I7 and 18 connected to each other and a U-shaped slider 19 Both ends of the bracelet are always connected by the clip. There is. A plurality of holes are formed on both sides of the U-shaped member 19, and a plurality of holes are formed on both sides of the U-shaped member 19. Connect one end of the metal piece 18 at a desired location of this member 19 connected to one end. be able to.

Meanwhile, the other end of the bracelet is connected to one end of a solid metal piece 17. Figure 5 As shown in FIG. 2, the metal piece 17 has a bar 20 having the same structure as the bar 15. Tip of member 19 The end portion is formed to constitute a cage, and the slider 2 is placed in the cage. ．． Two sliders and coil springs are housed in the same arrangement as 3 and coil spring 12. ing. With the above configuration, the elastic tongues found in most conventional clip-type clasps can be removed. A reliable clip-type clasp that is completely unaffected by fatigue is obtained.

Below, we will explain how the present invention utilizes the principle of the button-type clasp shown in Figures 1 to 4 above. Two embodiments of related bracelet clasps will be described.

The first embodiment uses two components, one of which is a protrusion with a head. A cage with two sliders, the other tensioned by a spring. It consists of a container device equipped with a

In the first embodiment shown in FIGS. 6 and 7, the first and second structures of the clasp are The configuration of components 30 and 34 is simpler than the configuration of the prior art example described above. two things that work together The elements of the bracelet are labeled 27 and 28 in FIG. child These elements 27 and 28 are made of leather or leather like the elements of the adjustable bracelet. is molded from plastic. Element 28 is a typical spring type first support shaft. 29, a first structure that performs the same function as the thin plate 13 of the conventional example shown in FIG. It is connected to a hook thin plate 30 that constitutes the element. The thin plate 30 is as shown in FIG. , a triangular shape cut out of a metal plate.

Further, in order to support the end of the first support shaft 29, the thin plate 30 has upright portions on both opposing edges. 31 are formed, and a rising tongue piece 32 is provided between these rising part edges 31 and 31. I'm being kicked. The raised tongue piece 32 is formed on the element 28 of the bracelet. The first support shaft 29 is externally fitted by fitting into the notch. In addition, the thin plate 30 has a large A cylindrical bolt 33 having a radial head is provided by driving its foot into a protruding shape.

The hook plate 30 of the first component interacts with the second component 34. The second configuration As shown in FIG. 6, the element 34 has a rectangular cylindrical cage 35 and a rectangular outer shape. It is bent into a substantially triangular shape and has a protrusion 36 that protrudes beyond the upper surface of the cage 35. It is made from a single piece of metal plate. Inside the cage 35, there are two sliders. -37,3B is located. Both outer ends of the sliders 37 and 38 are connected to the case. These sliders 37, 38 constitute an interacting indenter. has been completed. Both sliders 37 and 38 are adjusted so that they are locked on the lower surface of the head of the bolt 33. It has an arch-shaped cutout edge. A spring (not shown in Figure 6) allows the slider to slide. As the rollers 37 and 38 are biased away from each other, their hooked edges are opposite. approach and engage the bolt.

A second support shaft 39 is fitted into the protrusion 36 of the second component 34. Both end base points of 9 function as connection shafts to the press plate 40 . Similarly, the pressing plate 40 It is made by bending a metal plate, and has earlobe-like raised parts on both opposing edges. 41 and 42 are bent perpendicularly to the horizontal pressing plate 40. Holes for supporting both end base points of the second support shaft 39 are bored in the standing portions 41 and 42. Pressing plate 40 are connected by externally fitting the second support shaft 39 passing through the protrusion 36 . Applicable The edges of the press plate 40, that is, the portions forming the earlobe-like raised portions 41 and 42 at both ends are Convex raised surface 4 corresponding to the arcuate portion forming the ridge of the protrusion 36 of the second component 34 It is formed as 3. The deformation of the raised surface 43 of the pressing plate 40 is visible from the outside. It is also possible to provide an inner release section that does not have any internal openings. As shown in FIG. When lifted directly, the raised surface 43 spreads over a wider area than when the pressing plate is turned sideways. and separates from the outer surface of the protrusion 36. Therefore, the element 27 of the bracelet When engaged between the pressure plate 40 and the edge of the protrusion 36, the element 27 is pressed against the upper surface of the cage 35. In the case of a flexible bracelet, the Page 35 is a device with a compression adjustment function that allows the length to be adjusted approximately in millimeters. ing. In the combination of the pressing plate 40 and the cage 35, the second component 34 is This does not prevent the one component 30 from being locked to the bolt 33.

That is, the upper wall surface of the cage 35 excluding the hole is a free support for the bracelet element 27. The head of the bolt 33 is a hole formed in the upper wall of the cage 35. 44, so it can be used as an extremely thin flexible bracelet. A very simple bracelet clasp that allows you to adjust the length of your watch in millimeters. can be obtained. Furthermore, at the tips of the sliders 37 and 38 that engage with the bolt 33, The two horizontal buttons configured must be pressed at the same time, so the hook will come off. Unexpected situations can be prevented.

FIG. 8 shows a second embodiment of the present invention, and corresponds to FIG. 6, which shows the first embodiment. It is something. Similar to the first embodiment of FIG. 6, the first component of the clasp has folded edges. It consists of one hook plate 44 with two raised portions 45, 45 formed by extending. Bu Both ends of the support shaft 61 connected to one end of the sleeve strap 60 of the wristlet are connected to the above-mentioned upright portion 4. 5.45. The slat 44 is provided with a rigid bar 46.

The other second component of the clasp includes a cage 47 and further includes a suppression plate 48 or the like. It consists of The cage 47 performs the same function as the cage 35, that is, the cage 47 There are two sliders 49 which are movable laterally perpendicular to the length of the bracelet. 50, and an engaging protrusion 51 that locks with the bolt 46 on the slider 49.50. ．． 52 are provided. The slider 49.50 is attached by a spring (not shown). The outer parts of the protrusions 51 and 52 engage under the head of the bolt 46, and both sliders -49 and -50 are held in a position where their outer ends protrude from both ends of the cage 47. . The cage 47 is penetrated from the bottom surface to the top surface to enable engagement of the bolt 46.

On the other hand, the pressing plate 48 has the same function as the pressing plate 40 shown in FIG. Rather than being articulated on the rear of the cage 47, it has opposite side walls 54 and 55. It is stirrup shaped. Each side wall has a slider 49 fitted into a cage 47, respectively. ．． A calibrated opening 56 is drilled to engage 50 . The above pressing plate 4 8, the arrangement of the sliders is determined as follows. In other words, one If the slider travels far enough to be completely hidden inside the cage 47, The other slider is not attached to the cage 47 on a length corresponding to the thickness of the pressing plate 48. arranged in such a way that it stands out.

The pressing plate 48 fixes the end of the other string 59 of the bracelet to the cage 47. useful for. In this embodiment, the bracelet string is The protrusion 57 is soldered onto the surface of the pressing plate 48 facing the cage 47 without being sandwiched between the two. This protrusion 57.

are engaged with holes 58 bored at intervals in the end of the bracelet string 59. It has become. (See Figure 9). The operating stroke of slider 49 or 50 is Since it is longer than the slider 50 or 49 on the other hand, the installation of the pressure plate 48 is difficult. It can be done without using any special tools. While accommodating sliders with short operating strokes The side wall 54 or 55 of the slider is first hooked, and the other slider is formed on the side wall. All you have to do is push it all the way through the opening.

In the sectional view shown in FIG. 9, the thin plate 44 of the first component is attached to the bracelet via the support shaft The cage 47 or the pressing plate 4 is connected to the end of the sleeve strap 60 of the jacket. 8 is arranged so as to overlap with the string 59, and the cage 47 is placed against the thin plate 44. are arranged to overlap at a position where the upright portions 45 are retracted from the protruding ends.

The clasp described above is only slightly thick across its entire width. According to the invention, aesthetic value Other embodiments with higher values can also be provided. In particular, the pressure plate 48 or 40 The upper surface may be embossed or otherwise decorated, or Even if a modified example is selected, the clasp of the present invention can be applied to high-value jewelry and precious metals. Can be done.

Furthermore, the above two embodiments of the present invention can be applied to any type of flexible bracelet. Ru. Bracelets and clasps made of leather, rubberized waterproof fabric, plastic, etc. It can be used as gold.

FIG. 7 5゜ international search report ″′□”’PCT/CH8710011S＾　18754

Claims (5)

[Claims] 1. In addition to locking the bracelet, clasps, especially clasps for bracelets, Its length can be adjusted and fixed at the adjusted position, and it can be connected to one end of the bracelet string. a first component consisting of a small sheet metal with a barb having connection means; a case fitted with at least one slider that is elastically biased and engages the bar; means for length-adjustably connecting the other end of the bracelet to the second component having a A brake characterized in that it comprises a pressing plate that cooperates with the second component comprising: Clasp for thread. 2. The clasp according to claim 1, wherein a second component comprising the cage. includes a protrusion, the protrusion being a bent lateral part on the axis of which the pressure plate is disposed. It has a ridge in the opposite direction, and is connected to the pressing plate when the pressing plate is in the horizontal position. The clasp is characterized in that it clamps the one end of the bracelet string. 3. In the clasp according to claim 1, the pressing plate is provided with a projection, and the pressing plate is provided with a projection. The clasp is characterized by engaging with a hole drilled in the connecting end of the bracelet string. Money. 4. In the clasp according to claim 3, the pressing plate is laminated with the cage. and is removably connected to the cage, and at least one of the pressing plates The ends of one or two sliders that act as buttons in the openings drilled in the face wall. A clasp characterized in that the clasp is engaged with the clasp. 5. The clasp according to claim 4, wherein the second component is connected to the pressing plate. The bare cage houses two sliders, one of which is connected to the other. It takes a larger operating stroke than the cage, and when it is completely hidden inside the cage. is a clasp characterized in that it separates from the corresponding lateral line of the compression plate.