JP4674698B2 - Watch band - Google Patents

Description

  The present invention relates to a watch band such as a chain-type band of a wrist watch, and more particularly to a watch band having a chain connection structure that can be disassembled and reassembled.

  In general, a chain-type watch band is manufactured by connecting blocks made up of a plurality of component pieces to each other in a chain shape. For example, Japanese Utility Model Registration No. 3098919 discloses a watch band that is strong in strength, can be easily assembled, and pursues low cost. Particularly in the case of a chain-type watch band, the beauty of the surface of the component is lost with time and the surface of the component is easily damaged as the usage period increases. If the functionality of disassembly and reassembly is improved structurally so that the beauty of the surface is lost and scratched and dirty parts can be easily polished, it will last for decades and 100 years. For example, it can be used for 2 generations or 3 generations of parents and children, and those of such quality are desired.

Utility Model Registration No. 3098919

  By the way, not only the timepiece band disclosed in the above-mentioned Patent Document 1, but also many of the conventional timepiece bands have a structure in which a long shaft pin is penetrated from the band width direction with respect to all of a plurality of component pieces in a temporarily assembled state. Yes. Particularly in the case of Patent Document 1, five pin holes are formed in accordance with the number of component pieces, and by aligning the hole cores of these five pin holes, a long shaft pin is inserted from one side to the other side. We are assembling. In addition, a fixing member called a driving pin is driven from both ends of the shaft pin after insertion, and is caulked and press-fitted. Therefore, the assembly cost is very high, and the caulking structure with the driving pin makes it difficult to disassemble. In addition, once disassembled, a special skill is required for reassembly. If the number of parts is reduced as much as possible to simplify one block, and disassembly and reassembly can be performed easily, especially the above-mentioned refurbishment can be easily performed. A long-life and attached watch and band that can be revived at any time just as new.

  Accordingly, the main object of the present invention is to provide a chain-type watch band that can be used and reused over a long period of time by refurbishing the parts, and at the same time, the number of parts can be reduced to facilitate disassembly and reassembly. An object of the present invention is to provide a chain type watch band.

In order to achieve the above object, the timepiece band according to claim 1 according to the present invention is formed in a chain by connecting blocks each formed by combining a plurality of small parts, A generally U-shaped piece holder in which an assembly hole is provided through a central portion of a flat plate portion having a bandwidth, and a side plate portion is provided by rising from both ends of the flat plate portion in the bandwidth direction, and It has a lid portion that is carried so as to intersect between the side plate portions of the piece holder, a blind hole is provided on the inner surface of the lid portion, and penetrates in the bandwidth direction at both ends of the lid portion, respectively. An outer piece provided with a connecting pin hole, a connecting pin having a length such that both end portions inserted through the connecting pin hole of the outer piece protrude outside the hole, and a connecting pin hole penetrating through both end portions in the connecting direction. Provided, Connection for connecting the two outer pieces adjacent to each other in the connecting direction with both end portions of the connecting pin inserted through the connecting pin hole being in contact with the side plate portions on both sides of the piece holder from the inside. The plate is generally U-shaped with a flat plate portion provided with an assembly hole penetrating in the center and side plate portions respectively rising from both ends of the flat plate portion, and the side plate portions are formed on both sides of the piece holder. An inner piece that is in contact with the side plate portion from the inside and fills a gap between the two connecting pieces adjacent in the connecting direction, and is interposed between the piece holder and the outer piece, and the piece each is inserted into the assembling hole of the inner piece and the piece holder in a state where the overlapped inner piece and said Autapisu on the holder, the a By screwing the female screw that has been made form the blind hole of Tapisu it is characterized by comprising an assembly bolt for coupling assembling the said inner piece on the piece holder Autapisu.

  Therefore, according to this watch band, when assembling one block, the assembling order is not specified below. For example, first, the connecting pins are inserted into the connecting pin holes at both ends of the outer piece, and the both ends of the connecting pins are substantially equal. It protrudes from both sides of the outer piece with a reasonable length. The connecting pin may be a loose fitting structure in which the connecting pin is simply inserted through the connecting pin hole of the outer piece, or the inserted connecting pin may be fixed to the outer piece by brazing or the like so as to be integrally coupled. In that case, both ends of the connecting pin are distributed and projected from the both side surfaces of the outer piece to an equal length. Thus, it prepares for the assembly of the connection piece of the next process.

  The connecting piece is inserted into a protruding end portion of a connecting pin having a connecting pin hole on one side protruding from the side surface of the outer piece. Subsequently, by inserting the connecting pin hole on the other side of the connecting piece into the connecting pin protruding end protruding from the side surface of another outer piece adjacent in the connecting direction, one connecting piece straddles the two outer pieces. Let them connect. In this way, a total of four connecting pieces are prepared and connected in a temporarily assembled state, one for each outer piece, two in the front, rear, left and right directions in the connecting direction.

Also, the inner piece is placed on the flat plate portion between the side plate portions at both ends of the piece holder, and is arranged so that the side plate portions at both ends of the inner piece abut on the inner side of the side plate portions at both ends of the piece holder. Then, one outer piece accompanied by four connection pieces in a temporarily assembled state is placed on the flat plate portion of the piece holder so as to fit between the side plate portions at both ends . As a result , the connection piece in the temporarily assembled state comes into contact with the side plate portions at both ends of the piece holder from the inside, so that the connection piece is sandwiched from the outside by the side plate portion of the piece holder, so that it does not fall off on the outer piece. Will be retained. After that, the assembly bolt is inserted into the assembly holes of the piece holder and the inner piece from the back side of the piece holder, and the tip of the bolt is screwed into the female screw of the blind hole inside the outer piece to tighten it on the piece holder. Assemble the outer piece and inner piece together. That is, an inner piece is added on the piece holder, and together with the uppermost outer piece, it is fastened with one assembly bolt and joined together, so that the joining strength of one block is increased. At the same time, the connecting pieces are assembled at intervals in the connecting direction, but the side plate of the inner piece fills the gap between the connecting pieces so that the surface of each part in the block is almost flush. become.

In this way, one block can be easily assembled with little assembly time. In other words, it is quick and easy just by placing four connecting pieces in a temporarily assembled state on the front, rear, left and right in the connecting direction of one outer piece and placing them on the piece holder and screwing them from below with one assembly bolt. One block completes the assembly. It can be connected to other blocks assembled in the same manner through a connecting piece to form a band of chain connection structure .

The watch band according to claim 2 is provided with a cylindrical female threaded sleeve fixed to a blind hole of the outer piece, and the assembly bolt is screwed onto the female thread of the female threaded sleeve, whereby the piece The inner piece and the outer piece are stacked and fastened together on a holder.

  That is, as shown in claim 1, instead of forming a female screw directly in the blind hole provided inside the outer piece and screwing the front end portion of the assembly bolt, a sleeve with a female screw is fitted into the blind hole. It is fixed by a coupling means or method as appropriate. The assembly bolt is screwed onto the fixed female threaded sleeve over substantially the entire length of the screw. By doing so, when compared with the manufacturing man-hour when directly female threading inside the outer piece, only a blind hole is provided and a metal-separated female threaded sleeve is fixed to it by a fitting method etc. Then, the assembly bolt is screwed and screwed into the female threaded sleeve, thereby reducing the manufacturing cost and increasing the coupling strength.

According to watch band according to claim 1 of the present invention, simply by removing by loosening one assembly bolt, it can quite easily decompose four main parts pin Suhoruda the inner piece and Autapisu a coupling piece, connected at the same time The piece can also be easily removed from the outer piece. Accordingly, each of the above-mentioned parts that are damaged or dirty on the surface can be refurbished, and can be easily reassembled in the reverse procedure, so that the user can use for a long time beyond generations.

Further, according to the watch band according to claim 1, by a structure provided with intervening inner piece between Autapisu on the piece holder, effective in increasing and bond strength of 1 block whole is there.

According to the watch band of claim 2 , when the inner piece and the outer piece are assembled together on the piece holder and assembled, the sleeve with the female screw is fixed to the blind hole by protruding from the inner side of the outer piece. The assembly bolt is screwed in a state where the sleeve is inserted into the assembly holes of the inner piece and the piece holder. As a result, the coupling strength of the entire block is remarkably increased, and it is effective in reducing the number of manufacturing steps as compared with the case where the internal thread is machined directly inside the outer piece. In addition, when the female screw of the blind hole of the outer piece is formed by fitting a cylindrical female threaded sleeve into the blind hole, when the inner piece and the outer piece are assembled together on the piece holder, The three parts of the inner piece and the outer piece can be easily positioned on the piece holder.

  Hereinafter, the configuration of the present invention will be described in detail based on the best state shown in the drawings.

  FIGS. 1-6 shows an example of embodiment about the chain | strand-shaped connection structure of the watch band of this invention. As shown in FIGS. 1 (a) and 1 (b), chain-type bands 2 are secured to both sides of the watch case 1. In FIG. 3, which shows one of the blocks, the chain band 2 is composed of a piece holder 10, an outer piece 20, a connecting piece 30, an inner piece 40, and one assembly bolt for connecting and assembling these components. The material is stainless steel or the like.

  The piece holder 10 has a rectangular flat plate portion 11 that is long in the band width direction. An assembly hole 12 is provided through the central portion of the flat plate portion 11, and a chain connection indicated by an arrow A in the flat plate portion 11 is provided. Side plate portions 13 are provided at both ends in the direction. Further, the outer piece 20 has a lid portion 21 having a shape that intersects and overlaps the flat plate portion 11 of the piece holder 10, and the inner side of the central portion of the lid portion 21 is formed as a concave portion 22. A blind hole 23 is formed. As will be described later, a metal cylindrical female threaded sleeve (hereinafter simply referred to as a screw sleeve) 6 is fixed to the blind hole 23 by an appropriate means or method such as fitting, caulking, brazing, or welding. . Further, two connecting pin holes 24 penetrating the entire width of the lid portion in the bandwidth direction orthogonal to the coupling direction A are formed at both ends in the coupling direction A of the lid portion 21.

  The connecting pin 4 is inserted and provided in two parallel connecting pin holes 24 provided in the outer piece 20. The connecting pin 4 is longer than the width dimension in the band width direction of the outer piece 20, and has a length enough to evenly project from both side surfaces of the outer piece while being inserted into the connecting pin hole 24. Further, the connecting pin 4 is integrated with the outer piece 20 by being connected by connecting means such as brazing after being inserted into the connecting pin hole 24. In that case, it brazes so that the pin protrusion edge part 4a may protrude equally from the width direction both end surfaces of the outer piece 20. As shown in FIG. However, depending on conditions such as design problems and assembling convenience, the connecting pin 4 may not be integrated with the outer piece 20 but may be loosely inserted into the connecting pin hole 24 with an appropriate fitting allowance. Is possible.

  On the other hand, two outer pieces 20 that are adjacent in the connecting direction A are connected by sharing the two connecting pieces 30. The connecting piece 30 is a small piece, and two connecting pin holes 32 penetrating in the width direction of the piece are formed in both ends of the main body 31 in the connecting direction A. As described above, one connecting pin hole 32 of the connecting piece 30 is projected uniformly from both end faces of one outer piece 20 and inserted into the pin protruding end 4a, and the other connecting pin hole 32 is inserted into the other one. It inserts in the pin protrusion end part 4a which protrudes from the both end surfaces of the outer piece 20. In this way, one connecting piece 30 is connected across the two outer pieces 20.

  The upper corners of both ends in the connecting direction A of the outer piece 20 are formed as chamfered portions 25, respectively, and after assembling the other outer pieces 20 connected to each other via the connecting piece 30, the connecting pin 4 is used as a support shaft. The outer pieces do not interfere with each other when rotating or when the entire band is bent.

  The inner piece 40 is a member interposed between the outer piece 20 and the outer piece 20 on the piece holder 10. The inner piece 40 has a flat plate portion 41 having a size and shape that fits between the side plate portions 13 on both sides of the piece holder 10. And the assembly hole 42 which penetrates the center part of this flat plate part 41 and penetrates the assembly bolt 5 is provided. Further, the side plate portions 43 rise from both end portions of the flat plate portion 41 in the connection direction A, and are provided in a protruding shape so as to come into contact with the side plate portion 13 of the piece holder 10 from the inside. Such a side plate portion 43 has such a shape as to fill a gap surrounded by the side plate portion 13 between the two front and rear connecting pieces 30 and the side holder 13 of the piece holder 10 which are spaced apart in the connecting direction A. Thereby, the surface of each component after band assembly can be made substantially flush. In addition, as this inner piece 40, it overlaps with the outer piece on the piece holder 10, and it fastens with the assembly bolt 5, and raises the assembly strength of one whole block, or compensates the space | gap between components. Although it is provided with a function, it is possible to compensate for the overall coupling strength with only the piece holder 10 and the outer piece 20, and it can be omitted depending on the design convenience of both parts, in which case the number of parts is reduced. it can.

  As shown in FIG. 5 and FIGS. 6A and 6B, brackets 8 having a base portion 8a are provided at both ends of the watch case 1 as a structural example for securing both feet of the chain band 2. Are provided, and are connected by the assembly bolt 5 via the connecting piece 50. The connecting piece 50 is provided with a blind hole 53 and a connecting pin hole 54 at the center of the inner recess 52 of the main body 51, the screw sleeve 6 is fixed to the blind hole 53, and the connecting pin 4 is connected to the connecting pin hole 54. Insert. That is, the assembly bolt 5 is inserted into the bracket base portion 8a on the watch case 1 side and screwed into the screw sleeve 6, whereby the connecting piece 50 and the bracket 8 on the watch case 1 side are fastened together so that both the band feet It comes to connect the former.

Next, an example of the procedure for assembling such a watch band will be described with reference to FIG.
The connecting pin 4 is inserted into the two connecting pin holes 24 of the outer piece 20 and brazed, for example, so that the connecting pin 4 is integrally connected to the outer piece 20. At this time, both end portions of the connecting pin 4 are projected uniformly from both end surfaces of the lid portion of the outer piece 20 as pin projecting end portions 4a. Further, in the outer piece 20, the screw sleeve 6 is caulked in advance in the blind hole 23 inside the lid portion 21, and is fixed by an appropriate means or method such as brazing or welding. In this way, the outer piece 20 is prepared for the next assembly step with the connecting pin 4 and the screw sleeve 6. At that time, the connecting piece 30 can be inserted and held in the pin protruding end portion 4a of the connecting pin 4 integrated with the outer piece 20 to be set in a temporarily assembled state.

  Subsequently, the screw sleeve 6 inside the outer piece 20 is inserted into the inner piece 40 and is inserted into the assembly hole 12 of the piece holder 10. By inserting the screw sleeve 6, the three parts can be easily positioned by the inner piece 40 and the outer piece 20 on the piece holder 10. At that time, in order to prevent water droplets from entering, the ring-shaped rubber packing 7 is attached to the upper peripheral edge of the assembly hole 42 of the inner piece 40 and is assembled in close contact with the outer periphery of the screw sleeve 6. In the temporary assembly stage so far, the connection piece 30 connected to and held by the outer piece 20 is held in contact with the side plate portion 13 of the piece holder 10 from the outside.

  When the above temporary assembly process is completed, the assembly bolt 5 is inserted from the inside of the piece holder 10 and screwed into the female screw of the screw sleeve 6 to be screwed together, and the inner piece 40 and the uppermost outer piece 20 are fastened together and tightened. This completes the assembly of one block. By performing such connection in the connecting direction A via the connecting piece 30, one chain band 2 is formed.

  As for the assembly bolt 5, a special driver is used at a specialized store when a driver groove of “M” character shape, for example, is drilled on the head and parts are disassembled and reassembled for refurbishing. If the assembly bolt 5 is loosened and tightened, it is possible to eliminate the worry that the general user disassembles it unnecessarily and loses the parts.

The figure (a), (b) is the top view and side view which show the state which connected the chain type band of embodiment to the watch case. The figure (a), (b) is an assembly top view and side view which show only the chain type band of embodiment. The disassembled perspective view which shows each component which comprises one block of embodiment. The assembly top view by the partial cross section of one block of embodiment. The assembly drawing which shows the side surface cross section from the XX line of FIG. 4, and the cross section of the band joint part of a timepiece case. (A), (b) is a side sectional view and a plan view showing a connecting piece in the watch case band connecting portion of FIG.

Explanation of symbols

1 Watch case 2 Chain band 4 Connecting pin 4a Pin protruding end 5 Assembly bolt 6 Screw sleeve (sleeve with female thread)
7 Rubber packing 8 Band connecting bracket 10 Piece holder 11 Flat plate portion 12 Assembly hole 13 Side plate portion 20 Outer piece 21 Lid portion 23 Blind hole 24 Connection pin hole 30 Connection piece 32 Connection pin hole 40 Inner piece 41 Flat plate portion 42 Assembly hole 43 Side plate 50 Joint piece 53 Screw sleeve fixing hole 54 Connecting pin hole

Claims (2)

A watch band that is formed in a chain by connecting blocks made up of a plurality of small parts together,
The block
A piece holder provided with an assembly hole penetrating through the central portion of the flat plate portion having a bandwidth, and provided with side plate portions respectively rising from both ends of the flat plate portion in the bandwidth direction;
It has a lid portion that is carried so as to intersect between the side plate portions of the piece holder, a blind hole is provided on the inner surface of the lid portion, and penetrates in the bandwidth direction at both ends of the lid portion. An outer piece provided with a connecting pin hole;
A connecting pin having a length such that both end portions inserted into the connecting pin hole of the outer piece protrude outside the hole;
A connection pin hole is provided through both ends in the connection direction, and the connection pin holes inserted into the connection pin hole are connected in a state where both end portions are in contact with the side plate portions on both sides of the piece holder from the inside. A connecting piece for connecting across the two outer pieces adjacent in the direction;
The flat plate portion provided with an assembly hole penetrating in the center and the side plate portions respectively rising from both ends of the flat plate portion are substantially U-shaped, and the side plate portions are the side plate portions on both sides of the piece holder. And an inner piece interposed between the piece holder and the outer piece, and a shape that fills a gap between the two connecting pieces adjacent to each other in the connecting direction.
Wherein on piece holder in the overlapped state with the inner piece and said Autapisu are inserted respectively into the assembly hole of the inner piece and the piece holder, screwed into the female screw that have been made form the blind hole of the Autapisu A watch band comprising: an assembly bolt for assembling and coupling the inner piece and the outer piece on the piece holder. The female screw of the blind hole of the outer piece is formed by fitting a cylindrical female threaded sleeve into the blind hole, and the assembly bolt is screwed onto the female thread of the female threaded sleeve so that the assembly bolt is fitted onto the piece holder. The timepiece band according to claim 1, wherein the inner piece and the outer piece are overlapped and fastened together.

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