JP4412126B2 - Bundling sheet - Google Patents

Description

  The present invention relates to a bundled wire sheet for fixing a plurality of wires to a mounted body in a bundled state.

  Conventionally, when a plurality of wires such as electric wires and optical fibers are bundled together, a tape or the like is generally used. For example, in the following Patent Document 1, a wire group is wound a plurality of times with a non-adhesive tape, and a winding end of the non-adhesive tape is wound with an adhesive tape to fix the wire group.

It is also conceivable to bundle the wire group so as to bind the wire group with a string-like member.
JP-A-8-249935

  However, in Patent Document 1, it is not assumed that the bundled wire rod group is attached to an attachment body such as a pedestal, a panel, or a beam in a musical instrument or a car body, and this is also taken into consideration. There was room for improvement in improving workability.

  In addition, as described above, when the wire group is bound with a string-like member, since the binding portion tied with the string-like member is bulked by a knot, for example, when other members such as a cover are covered, Not only waste of space occurs, but also when a cover or the like interferes with the bound portion, the wire group is pressed. In particular, when the wire is an optical fiber, there is a problem that the wire is deformed by the compression and causes a light amount loss.

  The present invention has been made in order to solve the above-described problems of the prior art, and an object of the present invention is to improve workability when bundling a plurality of wires and attaching them to an attached body, and to make the binding portion compact. An object of the present invention is to provide a sheet for bundling that can be used.

In order to achieve the above object, a bundled sheet according to claim 1 of the present invention is a bundled sheet (51, 51) for attaching to a body (40) in a state where a plurality of wires (2, 3) are bundled. 61) which is provided at one end and bonded to the other end which is the end opposite to the one end to form and maintain an annular portion for winding and bundling the plurality of wires. When the annular portion is formed by the first adhesive portion (52ac, 62ac) and the first adhesive portion, the annular portion is positioned on the outer peripheral side of the annular portion and adhered to the attached body. The annular portion is formed by the second adhesive portion (52ab, 62aa) for attaching the bundle wire sheet to the attached body, and the first adhesive portion, and the bundle wire sheet is formed by the second adhesive portion. When attached to the attachment body, Non-adhesive portion (52aa, 62ab) which have a and, towards the said other end than the one end, wherein the width in a direction through the annular portion is wide.

  In the configuration of claim 1, preferably, the first and second adhesive portions are both provided on the same surface (52a, 62a) side of the bundled sheet (claim 2). Furthermore, the first and second adhesive portions are continuously and integrally provided on the same surface side (Claim 3). According to these, the 1st, 2nd adhesion part can be provided as an integral thing simultaneously from one side, and manufacture is easy.

  In addition, the code | symbol in the said parenthesis is an illustration.

  ADVANTAGE OF THE INVENTION According to this invention, while bundling a several wire and attaching to a to-be-attached body, while making workability | operativity favorable, a binding part can be made compact.

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

(First embodiment)
FIG. 1 is a partial plan view of an optical detection device to which a bundled wire sheet according to a first embodiment of the present invention is applied. In the present embodiment, an optical detection device for detecting a key release key operation is mounted on a keyboard instrument such as an automatic performance piano or a mute performance piano, and a configuration in which the bundle wire sheet is applied to the optical detection device. Illustrate.

  In addition to the light emitting unit 10 and the light receiving unit 19, each of the optical detection devices includes a plurality of light emitting side heads 20, light receiving side heads 30, and optical fibers 2 and 3. Hereinafter, the lower side of FIG. 1 is referred to as the front, and the right side is referred to as the right. Although not shown, an action mechanism unit including a key and a hammer corresponding to each key is provided below the base body 40 including the rear base unit 40c, the central base unit 40a, and the front base unit 40b. These are arranged in parallel in the horizontal direction (key arrangement direction).

  On the rear base portion 40c, the light emitting side heads 20 and the light receiving side heads 30 are alternately arranged along the key arrangement direction. In addition to the light emitting unit 10 and the light receiving unit 19, a substrate or the like (not shown) is disposed on the front base portion 40 b. One end 2a, 3a of the optical fiber 2, 3 is connected to each of the light emitting side head 20 and the light receiving side head 30, and the optical fibers 2, 3 are bundled to form a total fiber bundle AFB.

  The total fiber bundle AFB is gathered by the gathering and holding part 41 provided on the right part of the central base part 40a, and is directed to the light emitting part unit 10 and the light receiving part unit 19, and a plurality of other end parts of the optical fibers 2 and 3 are provided. The bundles FB (hereinafter referred to as “fiber bundles FB (2), FB (3)”) of bundles (for example, five) of optical fibers 2 and 3 are distributed and distributed, and each fiber bundle FB (2), ( 3) is connected to the plurality of insertion holes 10a and 17a of the light emitting unit 10 and the light receiving unit 19.

  The light emitting unit 10 includes a light emitting unit (not shown) such as an LED corresponding to the fiber bundle FB (2). When the light emitting unit emits light, the corresponding fiber bundle FB (2) is detected. Make light incident. This detection light is guided to the light receiving unit 19 through the optical fibers 2 and 3, the light emitting side head 20 and the light receiving side head 30. The light receiving unit 19 includes a plurality of light receiving units (not shown) such as phototransistors corresponding to the fiber bundles FB (3), and each light receiving unit outputs a current value corresponding to the amount of received light. When the key release operation is performed, a shutter (not shown) attached to the hammer traverses the optical path between the light emitting side head 20 and the light receiving side head 30. The key release operation is detected by the change in the amount of light received by each light receiving unit. Light emission of the light emitting part of the light emitting part unit 10 is performed with an extremely short period, and it becomes an optical pulse and functions as a key scan signal. As a key scanning method, a known method disclosed in Japanese Patent Laid-Open No. 9-152871 can be used.

  The total fiber bundle AFB is attached to the base body 40 by a plurality of adhesive sheets 51 as bundled sheets at a plurality of appropriate positions of the base body 40.

  2A is a plan view of one sheet body, FIG. 2B is a side view of the sheet body, and FIG. 2C is a perspective view of the sheet body.

  As shown in FIGS. 2B and 2C, one sheet body 50 includes an adhesive sheet 51 and release papers 54 and 55. As shown in FIG. 2A, the adhesive sheet 51 is composed of an intermediate portion 51b, a wide extending portion 51a and a narrow extending portion 51c extending from the intermediate portion 51b, and is thin transparent having elasticity. A transparent adhesive 53 is applied to a polyethylene film 52 which is a material. The thickness of the polyethylene film 52 is about 0.06 mm. As shown in FIG. 5B, portions of the first surface 52a of the polyethylene film 52 that correspond to the intermediate portion 51b to which the adhesive 53 is applied and the narrow extension portion 51c are adhesive surfaces 52ab and 52ac. It has become. Release papers 54 and 55 are affixed to the adhesive surfaces 52ab and 52ac. The adhesive 53 is integrally provided from the intermediate portion 51b to the narrow extending portion 51c, and the adhesive surface 52ab to the adhesive surface 52ac are continuous, but the release papers 54 and 55 are separated, and each is independent. It can be peeled off. As shown in FIG. 5A, the width A of the wide extending portion 51a is larger than the width B of the narrow extending portion 51c.

  When producing one sheet body 50, for example, a double-sided tape to which release papers 54 and 55 and an adhesive 53 are attached is prepared in advance, and the adhesive side surface of this double-sided tape is used as the polyethylene film 52. The second surface 52b is attached to portions corresponding to the intermediate portion 51b and the narrow extension portion 51c. Before and after this, separation and cutting processing of the release paper 54 and the release paper 55 is performed. Preferably, each sheet body 50 may be cut out after a double-sided tape having a corresponding size is applied to a polyethylene film having a size that can cover a plurality of sheet bodies 50.

  FIG. 3A is an external view showing a bundled state of the total fiber bundle AFB using the adhesive sheet 51. FIG. 4B is a side view schematically showing the binding portion of the total fiber bundle AFB.

  The arrangement of the total fiber bundle AFB, the attachment to the base body 40, and the fixing operation are performed as follows. First, only the release paper 54 is peeled off from each sheet body 50, and an adhesive surface 52 ab of each adhesive sheet 51 is bonded to the base body 40 while maintaining an appropriate interval in the base body 40 (see FIG. 1). Next, as shown in FIG. 1, the entire fiber bundle AFB is curved on the right side and disposed so as to be positioned on the adhesive sheet 51 on the base body 40. At this time, the total fiber bundle AFB is constrained by the aggregation holding portion 41, so that the disposition work is easy. Note that the entire fiber bundle AFB may be constrained at two or more places at the time of arrangement.

  Next, one end portions 2a and 3a of the optical fibers 2 and 3 are connected to the light emitting side head 20 and the light receiving side head 30, and the fiber bundles FB (2) and (3) are connected to the light emitting unit 10 and the light receiving unit 19 respectively. Are inserted into the insertion holes 10a and 17a, and the optical fibers 2 and 3 and the fiber bundles FB (2) and (3) are temporarily fixed. As will be described later, these final fixations are performed by irradiating visible light with a visible light curable adhesive.

  Next, the release paper 55 is peeled off from each sheet body 50, and as shown in FIGS. 3A and 3B, an annular portion is formed with the second surface 52b of each pressure-sensitive adhesive sheet 51 as the inner side. Wrap the entire fiber bundle AFB. That is, the wide extending portion 51a and the narrow extending portion 51c are bent, and the portion of the wide extending portion 51a of the second surface 52b is adhered and fastened to the adhesive surface 52ac, and the formed annular portion is maintained. . At this time, since the width A of the wide extending portion 51a is larger than the width B of the narrow extending portion 51c, the wide extending portion 51c is provided even if the narrow extending portion 51c slightly deviates in the longitudinal direction of the total fiber bundle AFB. It is securely bonded to the portion 51a, and the bonding work between them is easy.

  In this way, all the fiber bundles AFB are wound and held with respect to all the adhesive sheets 51, so that the fiber all bundles AFB are fixed to the base body 40. At this time, in each adhesive sheet 51, a portion corresponding to the wide extending portion 51a of the first surface 52a is exposed to the outside, and the “non-adhesive surface 52aa” (FIG. 2B) is also present. Reference).

  Thereafter, a transparent visible light curable adhesive (not shown) is injected from an injection hole (not shown) of each of the light emitting side head 20, the light receiving side head 30, the light emitting unit 10, and the light receiving unit 19 and externally. By irradiating visible light and curing the visible light curable adhesive, the temporarily fixed optical fibers 2 and 3 and fiber bundles FB (2) and (3) are converted into the light emitting side head 20 and the light receiving side head 30. The light emitting unit 10 and the light receiving unit 19 are fixed. At this time, since the polyethylene film 52 and the adhesive 53 are transparent in the adhesive sheet 51, the sheet 51 does not absorb heat even when the visible light is irradiated over a wide range of the optical detection device. Thereby, it is avoided that the adhesive sheet 51 is melted or deformed. The adhesive used to fix the optical fibers 2 and 3 is not limited to the visible light curable type, and may have a property of solidifying by UV (ultraviolet) irradiation.

  According to the present embodiment, the pressure-sensitive adhesive sheet 51 is rounded so that an annular portion is formed so as to wrap the entire fiber bundle AFB. When the portions are bonded, the annular portion is maintained, and the adhesive surface 52ab of the adhesive sheet 51 is positioned on the outer peripheral side of the annular portion and bonded to the base body 40. Moreover, the non-adhesive surface 52aa is not exposed to the outside, and unnecessary adhesive portions are not exposed to the outside more than necessary. Therefore, workability when the optical fibers 2 and 3 are bundled and attached to the base body 40 can be improved. Furthermore, since the pressure-sensitive adhesive sheet 51 is thin and the binding portion is not bulky, the binding portion can be made compact as compared with the case where it is tied with a string or the like. It is particularly suitable when bundling is required at locations where the thickness or height is limited.

  In addition, by covering the entire fiber bundle AFB with a margin with the adhesive sheet 51, even when the cover member is covered from above, the individual optical fibers 2 and 3 are not compressed, and a light loss due to deformation is generated. Can be suppressed. Further, since the size of the annular portion formed by the adhesive sheet 51 can be easily adjusted according to the outer diameter of the total fiber bundle AFB, it can be easily handled even when the number of fibers differs depending on the type of keyboard instrument. is there.

  In addition, since the adhesive surfaces 52ab and 52ac are both provided on the first surface 52a which is the same surface side of the adhesive sheet 51, and the adhesive surfaces 52ab and 52ac are continuously provided integrally, the manufacturing method as described above. For example, the adhesive 53 can be applied simultaneously from one side as a single unit, and the process can be simplified. Thereby, manufacture of the sheet body 50 thru | or the adhesive sheet 51 becomes easy.

  Further, since the release papers 54 and 55 can be peeled independently, it is convenient to securely perform the work of bonding the adhesive sheet 51 to the base body 40 and the work of wrapping and holding the entire fiber bundle AFB one by one. Good.

  In order to perform the function of attaching and fixing the entire fiber bundle AFB to the base body 40 as a minimum, it is not always necessary to provide the release papers 54 and 55 on the individual adhesive sheets 51. You may comprise so that the adhesive sheet 51 may be provided in the state by which the some large adhesive sheet 51 was affixed on the corresponding big paper.

  The polyethylene film 52 and the pressure-sensitive adhesive 53 are transparent. However, the film is limited to a transparent color as long as the heat generated by the light irradiated to cure the adhesive for fixing the optical fibers 2 and 3 is small. Not. For example, it is desirable to avoid a light-colored system such as white and a dark-colored system that easily absorbs infrared rays.

  In addition, although it is inferior in the point of the ease of manufacture of the sheet | seat body 50 thru | or the adhesive sheet 51, you may provide the adhesive surfaces 52ab and 52ac isolate | separated and provided in the distant place. Further, in the present embodiment, the adhesive surface 52ac and the portion of the wide extending portion 51a in the second surface 52b are bonded, but the adhesive 53 is replaced by the adhesive surface 52ac and the second surface 52b. You may enable it to adhere | attach both by providing in the part of the wide extension part 51a.

  In addition, if the adhesive sheet 51 is a sheet-like member that can be deformed by elasticity or plasticity, it can be used in place of the polyethylene film 52.

  In addition, the wire bundled with the adhesive sheet 51 is not limited to the optical fibers 2 and 3 and may be an electric wire or the like. Further, the apparatus to be applied is not limited to a keyboard instrument, and application to various apparatuses that require fixing of a wire material such as an automobile is conceivable.

(Second Embodiment)
FIG. 4A is a plan view of the pressure-sensitive adhesive sheet according to the second embodiment of the present invention, and FIG. 4B is a side view of the pressure-sensitive adhesive sheet. 4 (c) and 4 (d) are side views schematically showing a binding portion of the total fiber bundle AFB by the adhesive sheet.

  As shown in FIGS. 4A and 4B, the pressure-sensitive adhesive sheet 61 of this embodiment is applied with a shape in plan view and a pressure-sensitive adhesive as compared with the pressure-sensitive adhesive sheet 51 of the first embodiment. The position is different. The pressure-sensitive adhesive sheet 61 has a T-shape in plan view, and includes an intermediate portion 61b, a wide extending portion 61a extending from the intermediate portion 61b, and an extending portion 61c having the same width as the intermediate portion 61b. On the first surface 62a of the polyethylene film 62, adhesives 63 (63a, 63c) are applied to be separated from each other, and these portions serve as adhesive surfaces 62aa, 62ac. Release papers 64 and 65 are affixed to the adhesive surfaces 62aa and 62ac.

  In such a configuration, there are two possible modes of bundling the entire fiber bundle AFB and attaching it to the base body 40. First, as shown in FIG. 3C, the adhesive surface 62aa is bonded to the base body 40, and the fiber bundle AFB is wrapped with an annular portion formed with the second surface 62b of the adhesive sheet 61 inside. And the adhesion surface 62ac and the part of the wide extension part 61a among the 2nd surfaces 62b are adhere | attached, The said annular part is maintained and the fiber total bundle AFB is hold | maintained.

  Alternatively, as shown in FIG. 6D, the adhesive surface 62ac is attached to the wide extension portion 61a of the second surface 62b instead of the adhesive surface 62ac in the example of FIG. Is bonded to the base body 40.

  As described above, the fiber total bundle AFB can be fixed to the base body 40 by any of the modes. At that time, in the adhesive sheet 61, a portion of the first surface 62a corresponding to the intermediate portion 61b becomes a “non-adhesive surface 62ab” that is exposed to the outside and the adhesive 63 does not exist.

  According to the present embodiment, the same as in the first embodiment, except for the effect of easy manufacture of the adhesive sheet 51 due to the adhesive surfaces 52ab and 52ac being continuously and integrally provided in the first embodiment. The effect of can be produced.

It is a fragmentary top view of the optical detection apparatus with which the sheet | seat for bundled wires which concerns on the 1st Embodiment of this invention is applied. It is a top view (figure (a)), a side view (figure (b)), and a perspective view (figure (c)) of one sheet object. It is an external view (figure (a)) which shows the bundling state of all the fiber bundles which used the adhesive sheet, and a side view (figure (b)) which shows typically the bundling part of all the fiber bundles. The top view (figure (a)), side view (figure (b)) of the adhesive sheet which concerns on the 2nd Embodiment of this invention, and the side view which shows typically the binding part of the fiber total bundle by the adhesive sheet (FIGS. (C) and (d)).

Explanation of symbols

  2, 3 optical fiber, AFB fiber whole bundle, 40 base body (attached body), 50 sheet body, 51, 61 adhesive sheet (sheet for bundled wire), 52a, 62a first surface, 52b, 62b second surface, 52aa, 62ab non-adhesive surface (non-adhesive part), 52ab adhesive surface (second adhesive part), 52ac adhesive surface (first adhesive part), 53, 63 adhesive, 54, 55, 64, 65 release paper, 62aa adhesive Surface (second adhesive part), 62ac adhesive surface (first adhesive part)

Claims (3)

A bundle sheet for attaching to a body to be attached in a state where a plurality of wires are bundled,
A first adhesive portion for forming and maintaining an annular portion for winding and bundling the plurality of wires by being attached to the other end that is provided at one end and opposite to the one end When,
When the annular portion is formed by the first adhesive portion, the bundled sheet is attached to the attached body by being adhered to the attached body located on the outer peripheral side of the annular portion. A second adhesive portion of
When for the wire bundle sheet is attached above to the attached body by the said annular portion is formed and the second adhesive portion by the first adhesive portion, possess a non-adhesive portion which is exposed to the outside,
The bundle sheet, wherein the other end portion is wider than the one end portion in a direction penetrating the annular portion .   2. The bundle sheet according to claim 1, wherein the first and second adhesive portions are both provided on the same surface side of the bundle sheet.   The bundle sheet according to claim 2, wherein the first and second adhesive portions are provided continuously and integrally on the same surface side.

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