RU172161U1 - CUTTING WATCHES - Google Patents

Abstract

The utility model relates to the watch industry and can be used in the manufacture of watches with a split strap. A watch with a split strap is provided having a bearing case with recesses for attaching parts of the split strap and a removable patch decorative element fixed to the back of the bearing case, for example a decorative cover made of precious metals. The same fasteners are used to fasten the decorative element and the split strap. To do this, holes are made in the wall of the recesses of the bearing housing in which fastening elements are placed, and holes are made in the connecting end sections of the strap and in the overlay decorative element, the location of which is aligned with the holes in the side wall. The fastening elements sequentially pass through the holes in the removable decorative element, the holes in the wall of the recess and the holes in the connecting section of the split strap and are made with a head pressing the removable decorative element to the back surface of the watch case, fixing the assembly. A decorative case for this watch is also offered. The utility model simplifies the installation and replacement of the split strap in the watch and eliminates the accidental loss of fastening elements and the overlay decorative element when installing and replacing the split strap. 18 s.p. f-ly, 8 ill.

Description

FIELD OF TECHNOLOGY

The utility model relates to the field of watch industry, in particular to the design of watches, namely the design of watches with a split strap, and can be used in the manufacture of watches from precious metals and their alloys.

BACKGROUND

Watches with a split strap require a specific design of the attachment points of two parts of the strap in the watch case.

Known watches with a split strap comprising a case, a clock mechanism housed in the case, a glass covering the dial, a back cover on the back surface of the case, and a split strap of two parts attached on both sides to the watch case, while the watch case has protruding from two sides of the platform, in the walls of which holes are made in which fastening elements are placed for fastening the split strap. Each part of the split strap has a connecting end section, each of the connecting end sections is located on one of the platforms of the housing, with holes in each connecting end section, the location of which is aligned with the holes in the wall of the platform. The watch is equipped with two removable plates for attaching the connecting end sections of the split strap, with each removable plate having protrusions entering the holes of the connecting end sections. The protrusions are made with threaded sockets, into which the shanks of the fastening elements are screwed (US patent No. 4034552, IPC G04B 37/00 from 07/12/1977). In this design, to replace the strap, it is necessary to completely disconnect the plates and fasteners, which complicates the replacement of the strap, and can also lead to the loss of removable plates and fasteners.

Wrist watches with a split strap are also known, comprising a case, a clock mechanism housed in the case, a glass covering the dial, a back cover on the back surface of the case, and a split strap of two parts attached to the watch case on both sides, the watch case being round longitudinal grooves made in the side walls of the watch case, and holes are made in the walls of the grooves in which the fastening elements for fastening the split strap are placed, each part of the split strap has a connecting end th section, the connecting portion is equipped with a hard edge of the cylindrical rod placed round the longitudinal groove of the housing. A hole is made in the rod into which the threaded end of the fastening element is screwed (US patent No. 4432655, IPC G04B 37/00 of 02/11/1984).

Wrist watches with a split strap are also known, comprising a case, a clock mechanism housed in the case, and a split strap of two parts attached on both sides to the watch case, the watch case having longitudinal grooves made in the side walls of the watch case, and the walls of the grooves are made holes in which fasteners are placed for fastening the split strap. Each part of the split strap has a connecting end section, and a reinforcing element fixed by one side on the edge of the connecting section, and the other side of the reinforcing element is inserted into a groove in the wall of the watch case and is made with a hole through which the shank of the fastener for attaching the split strap is passed. The split strap is made of thermoplastic polymer, while the reinforcing element is molded into the connecting end of the split strap (published US application No. 2006/0180000, IPC G10G 5/00 of 08/17/2006). The presence of a rigid reinforcing element increases the reliability of fastening the split strap in the watch case, however, the mounting unit of the split strap has a complex structure with a large number of parts, which complicates the assembly of the watch.

Wrist watches with a split strap are also known, comprising a case, a clock mechanism located in the case, a glass covering the dial, a back cover on the back surface of the case, and a split strap of two parts attached to the watch case from two sides, the watch case having recesses made in the side walls of the watch case, and in the walls of the recesses are made holes in which fastening elements are placed for fastening the split strap, the fixing shanks of the fastening elements are placed in the indicated depths lances, and each part of the split strap has a connecting end section, each of the connecting end sections is located in one of the recesses of the housing, while in each connecting end section there are holes, the location of which is aligned with the holes in the side walls of the recesses, and through which the fixing shanks are passed fasteners for mounting the split strap (US patent No. 7300201, IPC G04B 37/00 from 11/27/2007). In this watch, in order to obtain sufficient fastening strength for the split strap, metal cylindrical bushings are used, fixed in the connecting end sections of the split strap. Individual reinforcing elements - bushings used in the specified technical solution, do not provide sufficient load capacity, especially for thin straps, because the sleeves are not interconnected, and therefore do not provide a redistribution of load between the individual places of attachment of the “screw-sleeve-strap”. The split strap is made of elastic plastic. Plastic and metal have significantly different properties, so it is difficult to ensure their connection, capable of long-term maintaining high connection strength of the sleeve and the end of the strap. As an alternative, in split straps, the connecting section can be made in the form of a loop formed by bending the end section of the strap, applying it to the adjacent section of the strap and fastening to this adjacent section. The loop covers the mating element of the watch case. As a rule, this is a rod fixed in the ears of the watch and passing through the loop.

According to this scheme, for example, split watchbands for Offshore Limited Force 4 watches are described on the company's website (http://kupiremeshok.ru/handmadestr/handmade_offshore_limited_force). The strap is made of leather and sewn with cotton thread.

Thus, there is a technical problem consisting in the need to develop a watch with a split strap that would have higher performance due to the simplification of the installation and replacement of the split strap and decorative elements of the watch.

ESSENCE OF A USEFUL MODEL

The objective of this utility model is to develop a wristwatch with a split strap with a decorative case and a decorative case for this watch, which provide higher performance by simplifying the installation and replacement of the split strap and decorative elements of the watch case, the design of which should provide the ability to fix the split case strap and install a decorative element on the case with a minimum number of fasteners. In addition, the design of a watch with a split strap and a decorative case for this watch should provide the opportunity to exclude the accidental loss of individual parts of the watch when installing and replacing the split strap. In addition, the design of a watch with a split strap and a decorative case for this watch should provide increased reliability of fastening the split strap to the watch case. Other advantages of the utility model will be apparent from the description of the utility model and the drawings.

To solve the tasks, a watch with a split strap is proposed, comprising a case, a clock mechanism located in the case, a glass that closes the dial, a back cover on the back of the case, and a split strap of two parts attached on both sides to the watch case, while the watch has recesses made in the side walls of the watch case, and holes are made in the walls of the recesses, in which fastening elements having fixing shanks are placed, while the fixing shanks are placed across at the indicated recesses, and each part of the split strap has a connecting end section, each of the connecting end sections is placed in one of the recesses of the housing, while in each connecting end section there are holes, the location of which is aligned with the holes in the side walls of the recesses, and through which the fixing shanks of fasteners for fastening the split strap, while the watch is equipped with a detachable patch decorative element covering the back surface watchcase, a removable decorative element is provided with holes, these holes coordinated with the recesses in the walls of the watch case, wherein said fasteners are passed through openings in a removable decorative element and formed with a head urging the decorative cover to the rear surface of the housing hours.

In addition, in the proposed watches, the recess in the side wall of the watch case is made in the form of a straight longitudinal slot open on the sides.

In addition, in the proposed watch, the recess in the side wall of the watch case is made in the form of a socket.

In addition, in the proposed watch, said fasteners are made in the form of set screws with a head, while the hole in the wall of the recess is made with a thread corresponding to the thread of the set screw.

In addition, in the proposed watch, the wall of the recess, opposite the hole for the fastener, is made with a socket located opposite this hole to accommodate the end of the fixing shank of the fastener in it.

Preferably, the decorative cover is made of precious metals or their alloys.

In addition, in the proposed watches, the front surface of the watch case is closed with a decorative ring covering the glass and fixed to the watch case.

In addition, in the proposed watches, each connecting section of the split strap is equipped with a reinforcing element, while the reinforcing element is made in the form of a thin flexible flat reinforcing element with holes for passing the fastening element aligned with similar holes in the corresponding connecting section located in the body of the strap equidistant to its middle a surface made of a material having greater strength than the main material of the split strap and rigidly bonded to the main material of the split strap that is in contact with it, over the entire contact surface.

In this case, a thin flexible flat reinforcing element can be placed in the body of the strap over the entire area of the strap.

In addition, in the proposed watch, a thin flexible flat reinforcing element can be placed in the body of the strap in the area of the connecting section, covering through holes for passing the fastening element, or a thin flexible flat reinforcing element can be placed in the body of the strap in the area overlapping the connecting section.

In this case, a thin flexible flat reinforcing element is rigidly bonded to the main material of the split strap in contact with discrete connecting elements, preferably firmware.

In addition, a thin flexible flat reinforcing element can be rigidly bonded to the main material of the split strap in contact with it over the entire contact surface, preferably with glue, or with a polymer binder.

In addition, the surface of the thin flexible flat reinforcing element is made with notches.

In addition, a thin flexible flat reinforcing element can be made in the form of a mesh.

In addition, the connecting section with a reinforcing mesh and a polymer binder can be made as a composite material.

The technical result, objectively manifested when using the utility model, is to simplify the installation and replacement of the split strap in watches with patch decorative elements, because in the proposed design, if the watch case and patch decorative element have matching holes for fastening elements to hold the patch decorative element on the case hours, in particular a decorative removable back cover, and fastening a split strap, you can do with a minimum number of holes and nests for fasteners and use the same fasteners, in particular fastening screws with a head, passed through these matching holes in the overlay decorative element, the walls of the recesses and in the connecting end sections of the split strap.

The implementation of the recesses in the side wall of the watch case in the form of a straight longitudinal slot open on the sides or in the form of a socket provides a sufficiently accurate orientation of the holes in the connecting end sections of the split strap, which simplifies their location relative to the holes in the side walls of the recesses.

The implementation of the fasteners for fastening the split strap in the form of set screws with a head and fastening the set screws in the hole in the wall of the recess made with a thread corresponding to the thread of the set screw, simplifies the fastening and replacement of the split strap, as it allows you to replace it without disconnecting the installation elements from the body. In addition, this ensures that when replacing the strap, the set screws will not be lost. In this case, it is also guaranteed that the decorative removable cover will not be lost, which is especially important when the cover is made of precious metals, thereby making it possible to remove the fixing shanks of the fasteners inside the threaded hole when attaching the split strap.

If there is a recess in the wall opposite the hole for the fastener for attaching the strap, a slot located opposite this hole, to place the end of the fixing shank of the fastener in it, a more reliable fastening of the strap is provided.

The proposed design of the split strap is optimally coordinated with the design features of the watch case to simplify the installation and replacement of the split strap, since the composite design of the connecting sections of the strap provides sufficient strap rigidity for installing them in the recesses of the case and preserves the location of the holes in the strap relative to the corresponding holes in the case hours when the temperature and humidity of the environment change and when the forces change, to split strap.

All this also contributes to increasing the durability of fastening the strap in the watch case, which will reduce the time for customer service watches.

BRIEF DESCRIPTION OF THE DRAWINGS

The essence of the utility model is illustrated by a detailed description of the design of the split strap with reference to the illustrations, where

in FIG. Figures 1 and 2 show a general view of a complete watch with a strap (top and bottom views);

in FIG. 3 shows a view of the main elements of a wristwatch in an isometric view;

in FIG. 4 shows a cross-section of the watch case along line AA in FIG. one;

in FIG. 5 shows section BB in FIG. 2;

in FIG. 6 shows a section BB in FIG. 2;

in FIG. 7 shows one part of a split strap; and

in FIG. 8 shows a cross-section of the strap along the median plane.

EXAMPLES OF IMPLEMENTATION OF A USEFUL MODEL

In FIG. 1 shows a general view of the watch in accordance with the proposed utility model.

A watch with a split strap contains a bearing case 1, a split strap 2, which includes two parts 3 and 4, attached on both sides to the bearing case 1. A clock mechanism is placed in the bearing case 5. On the front side, the bearing case has a glass 6 that covers the dial 7. On the back side, the bearing housing is closed by the back cover 8. Outside, the back cover 8 is closed by a removable overhead. decorative element 9. The bearing case 1 hours and invoice detachable decorative element 9 form the assembled decorative watch case. Preferably, the overlay decorative element 9 is a removable decorative cover made of precious metals of gold, silver, platinum, palladium or their alloys, including their alloys with any base metals used in the jewelry and watch industries. The removable decorative cover as a whole repeats the contours of the back side of the bearing case 1, forming the corresponding external surface of the watch case from the back side. Holes 10 are made in the removable decorative cover for mounting it on the back surface of the bearing housing 1.

The bearing body 1 has recesses 11 made in the side walls of the bearing body 1. Through holes 13 are made in the walls 12 of the recesses 11. The location of the holes 10 in the removable decorative cover is aligned with the holes 13 so that holes 13 can be used for fastening it. Through holes 10 and 13, the fastening elements 14 for fastening the split strap 2 and the removable decorative element 8. are missing. The rods 15 of the fastening elements 14 are brought into the recesses 11 and cross them in the transverse direction. Preferably, the holes 13 have a screw thread, and the fastening elements 14 are made in the form of set screws with a thread corresponding to the thread of the holes 13. In fact, the shaft 15 is formed mainly, but not necessarily, by the threaded portion of the set screw. Preferably, in the wall 16 of the recess 11, opposite the hole 13 for the fastener, there is a socket 17 located opposite this hole. The set screws can have a shank 18, which enters the socket 17, additionally fixing the set screw in the main body 1. The set screws have a head 19, which compresses the removable decorative element 9 to the outer surface of the wall 12 of the recess 11.

Depending on the specific design of the bearing housing 1, the length of the threaded portion of the set screw may be equal to the length of the hole 13, or be larger or smaller.

The number of holes 10 and 13 may be different: from one to three. In the application example provided in the application, two holes 10 and 13 are made in the walls, while the center-to-center distances between these holes in the recesses 11 on both sides of the housing 1 coincide. In addition, the holes 10 and 13 are located symmetrically relative to the longitudinal axis of the housing 1.

Preferably, the recess 11 in the side wall of the bearing housing 1 hours can be made in the form of a straight rectangular slot open on the sides, but this does not exclude other versions of the recess, for example, in the form of a socket in the side wall of the bearing housing 1. It is possible to make a recess in the form of a slot open on one side.

The split watchband consists of two parts 3 and 4, each of which is attached to the watch case 1 using recesses 11. In this embodiment, the thickness of each part of the split watch is the same over the entire length, and the width of each part gradually increases from one end to another, however, this does not exclude the possibility of making a strap with a variable thickness of each part of the strap and with any change in the shape of the strap in plan. In the transverse direction, the thickness of the strap can be either the same or different, for example, in the cross section, the strap can be made semicircular. At one narrower end of each part 3 and 4 there are connecting elements designed to form a detachable connection of these two parts of the split strap. In the described embodiment, the connecting element of the first part 3 is made in the form of a collar 20. The connecting element of the second part 4 is made in the form of a harness 21 with a buckle 22.

The connecting elements can also be made in the form of loops and holes on the harness and pin on the neck, as disclosed in the description of the patent of the Russian Federation No. 2018248 or elements of the lock-latch, as disclosed in Japanese application JP 2003329782 A, or you can use any other known elements connecting the two parts of the split strap to each other.

Each of the parts 3 and 4 of the split strap also has a connecting section 23 or 24. The connecting sections 23 and 24 are made with the possibility of placement and fastening in the corresponding recesses 11 of the bearing housing 1 hour, for which the thickness of the sections 23 and 24 are the same along the entire length of the connecting section and matched with the width of the recess 11 (see Fig. 5, 6). In the connecting sections 23 and 24, mounting holes 25 are made for passing fasteners 14. The number of holes 25 can be different: from one to three in each connecting section 23, 24. The holes 25 in the connecting sections 23 and 24 are made in accordance with the holes 13 in the wall 12 of the recess 11. In the embodiment shown in the application, two holes 25 are made in the connecting sections, and the center-to-center distance on the connecting section 23 is equal to the center-to-center distance the connecting section 24. In addition, the holes 25 are located symmetrically relative to the longitudinal axis of the strap. The strap is fastened in the recess 11 of the bearing housing 1 hours by fasteners 14, for example, set screws.

In the body of each connecting section 23, 24 of the equidistant mid-surface of the strap, a reinforcing element 26 is placed. The reinforcing element 26 is flat and can be located on part of the cross-sectional area of the connecting section or on its entire area. The shape of the reinforcing element 26 may be different: in the form of a plate or mesh, or in the form of threads / fibers located in the plane of reinforcement. Reinforcing fibers can be located at any angle to the longitudinal direction of the strap, be straight or have a curved shape; can be made in the form of short segments or have a substantial length. The reinforcing element 26 is preferably arranged in such a way that it covers all the openings 25 of each connecting portion 23, 24, as shown in FIG. 4. To increase the coefficient of adhesion of the material of the strap with the reinforcing element 26, its surface can be made with notches.

The implementation of the reinforcing element 26 flat and placing it in the body of the strap equidistant to the middle surface increases the load capacity of the connecting section 23 and 24 by increasing the contact area of the reinforcing element 26 with the material of the strap. The placement of the reinforcing element 26 in the body of the strap, in addition, reduces the abrasion of the case for 1 hour, since the hard reinforcing element 26 is completely "immersed" in the material of the strap and does not protrude above its outer surface.

The material of the reinforcing element is selected from the condition of matching its properties with the properties of the material of the strap and is selected from the following list: leather, threads of plant origin (linen, cotton), metals, polymeric materials and can be used both individually and in combination with other materials. For example, a metal or polyamide mesh or a cotton film reinforced with cotton threads and the like can be used as a reinforcing element.

The implementation of the reinforcing element 26 with notches or in the form of a mesh provides an increase in its durability, since it increases the adhesion force of the reinforcing element 26 with the material of the strap, which leads to an increase in the load capacity of the connecting section 23, 24.

The connecting section 23, 24 can be performed as a composite material. In the manufacture of the connecting section 23, 24 by the type of composite material, a multicomponent structure is created consisting of the outer layers of the main material of the strap and a reinforced reinforcing layer placed between them, including a thin flexible flat reinforcing element (filler) and a matrix (for example, of the material of the strap ), with their border clearly dividing. The material of the strap can be used directly as a matrix, for example, in the manufacture of a strap from a polymeric material (polyethylene, rubber, etc.), or any binder from a material other than the material of the strap. In particular, any known materials can be used for the matrix: adhesives of any type, polymer binders of any type, thermoplastic films, etc. the connecting section can be made as a composite material, i.e. a reinforcing component — metal threads — will be introduced into the polymer material (matrix) as a filler. Other combinations of materials for matrix and filler are possible.

The front surface of the bearing housing 1 can be covered by a decorative ring 27 covering the glass 6, mounted on the bearing housing 1.

In the assembled state, the reinforced connecting sections 23 and 24 are placed in the recesses 11 of the bearing housing 1 hours so that the holes 25 are aligned with the holes 13 in the wall of the recess 11 in the bearing housing 1 hour. The overlay decorative element 9, for example, the overlay decorative cover, is mounted on the supporting body so that the holes 10 in the cover are aligned with the holes 13 in the wall of the recess 11. The position of parts 3 and 4 of the strap and the overlay decorative cover are fixed with set screws that are screwed into the threads holes 13 in the bearing case 1 hours. The head of the set screw 19 presses the patch decorative cover against the wall 12 of the recess 11, fixing the entire structure in assembled form. Thus, the strap and patch decorative cover are fixed with the same set screws.

If you need to replace the split strap, rotate the set screw in the hole 13, so that the tail of the set screw comes out of the hole 25 in the connecting section 23, 24 and ends up in the hole 13, freeing the connecting section. The corresponding part of the strap is removed from the recess and a replacement strap can be installed. In this case, the set screw partially remains in the hole 13, holding the patch decorative cover.

Claims (20)

1. Watches with a split strap containing a bearing case, a glass covering the dial, a back cover on the back surface of the case, and a split strap of two parts attached on both sides to the watch case, while the watch case has recesses made in the side walls the watch case, and in the walls of the recesses are made holes in which fastening elements are located having fixing shanks, while the fixing shanks are placed across these recesses, and each part of the split strap has there is a connecting end section, each of the connecting end sections is placed in one of the recesses of the housing, while in each connecting end section there are holes, the location of which is aligned with the holes in the side walls of the recesses, and through which the fixing shanks of the fasteners for fastening the split strap are passed, characterized in that the watch is equipped with an overlay removable decorative element covering the back surface of the watch case in a removable decorative element the holes are made, which are aligned with the indicated holes in the walls of the recesses of the watch case, while the said fasteners are passed through the holes in the removable decorative element and are made with a head pressing the removable decorative element to the back surface of the watch case. 2. The watch according to claim 1, characterized in that the recess in the side wall of the watch case is made in the form of a straight longitudinal slot open on the sides. 3. The watch according to claim 1, characterized in that the recess in the side wall of the watch case is made in the form of a socket. 4. A watch according to claim 1, characterized in that the fasteners for fastening the split strap are made in the form of set screws with the head, while the hole in the wall of the recess is made with a thread corresponding to the thread of the set screw. 5. The watch according to claim 1, characterized in that the wall of the recess opposite the hole for the fastener for fastening the strap is made with a socket located opposite this hole to accommodate the end of the fixing shank of the fastener in it. 6. The watch according to claim 1, characterized in that the removable decorative element is a patch decorative cover made of precious metals or their alloys. 7. The watch according to claim 1, characterized in that the front surface of the watch case is closed with a decorative ring covering the glass and mounted on the watch case. 8. Watch under item 1, characterized in that each connecting section of the split strap is equipped with a reinforcing element, while the reinforcing element is made in the form of a thin flexible flat reinforcing element with holes for passing the fastening element aligned with similar holes in the corresponding connecting section, placed in the body of the strap is equidistant to its middle surface, made of a material having greater strength than the main material of the split strap, and rigidly bonded to the main material of the split strap in contact with it, over the entire contact surface. 9. Watch under item 8, characterized in that a thin flexible flat reinforcing element is placed in the body of the strap over the entire area of the strap. 10. Watch under item 8, characterized in that a thin flexible flat reinforcing element is placed in the body of the strap in the area of the connecting section, covering through holes for passing the fastener. 11. Watch under item 8, characterized in that a thin flexible flat reinforcing element is placed in the body of the strap in the area that overlaps the connecting section. 12. The watch according to claim 8, characterized in that the thin flexible flat reinforcing element is rigidly fastened to the main material of the split strap in contact with discrete connecting elements. 13. The watch according to claim 12, characterized in that the thin flexible flat reinforcing element is rigidly fastened with the main contact material of the split strap in contact with the firmware. 14. Watch according to claim 8, characterized in that the thin flexible flat reinforcing element is rigidly fastened to the main material of the split strap in contact with it over the entire contact surface. 15. The watch according to claim 14, characterized in that the thin flexible flat reinforcing element is rigidly fastened to the main material of the split strap in contact with the adhesive. 16. Watch under item 14, characterized in that the thin flexible flat reinforcing element is rigidly bonded to the main material of the split strap in contact with it using a polymer binder. 17. The watch according to claim 8, characterized in that the surface of the thin flexible flat reinforcing element is made with notches. 18. Watch under item 8 or 16, characterized in that the thin flexible flat reinforcing element is made in the form of a grid. 19. A watch according to claim 18, characterized in that the connecting section with a reinforcing mesh and a polymer binder is made as a composite material.

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