JP2006212969A - Cable fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably fix a flat cable to an apparatus case without incurring a cost increase and a decrease of an available space. <P>SOLUTION: The cable fixture 33 of the present invention is integrally formed by cutting out following parts continuously in a plane development shape from a polyester film: a first and second plate portions 41 and 43 which are inserted on the front and rear sides of a belt-shaped frame 31 of the apparatus; a joining plate portion 45 which joins leading ends of the first and second plate portions 41 and 43; a cable holding claws 42a and 42b which are formed by cutting and raising parts of the first plate portion 41 or of the second plate portion 43 and hold sides of a composite flat cable 28; and a third plate portion 47 which forms a slit 46 along a side edge of the first plate portion 41 or along a side edge of the second plate portion 43. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cable fastener for fixing a flat cable wired along a belt-like frame portion of a device such as a printing apparatus to the belt-like frame portion.

  The flat cable connected to the print head of the printing apparatus is wired along a belt-like frame portion or the like of the casing of the apparatus with a surplus length that allows the print head to reciprocate. The wired flat cable is appropriately fixed to the casing of the apparatus so as not to be inadvertently displaced due to vibrations caused by the operation of the print head and to interfere with surrounding parts in the apparatus.

  11 to 13 show an example of a structure in which a flat cable wired to a belt-like frame portion of the casing of the apparatus is fixed to the belt-like frame portion.

  The fixing structure shown in FIG. 11A is a structure in which a flat cable 105 is fixed on a belt-like frame portion 101 of a housing of a metal plate apparatus through a double-sided adhesive tape 103, and a plurality of sheets are fixed. The example which wired the flat cable 105 of this in the lamination | stacking state is shown.

  The fixing structure shown in FIG. 11 (b) is an example in which a plurality of flat cables 105 are laminated on the belt-like frame portion 101 of the casing of the apparatus, and are attached and fixed with acetate tape 107 from above. Is shown.

  In the fixing structure shown in FIGS. 12A and 12B, cable locking claws 101a and 101b for pressing the side edges of the flat cable 105 are integrally formed on the belt-like frame portion 101 of the casing of the apparatus by cutting and raising. The flat cable 105 is inserted between the cable locking claws 101a and 101b.

In the fixing structure shown in FIGS. 13A and 13B, a mounting hole 101c for mounting a fastener is formed in the belt-like frame portion 101 of the casing of the apparatus, and fitted and mounted in the mounting hole 101c. The flat cable 105 is fixed by a resin cable fastener 109.
The cable fastener 109 is integrally formed of a substantially U-shaped main body 109a that surrounds the upper side and both sides of the wired flat cable 105, and elastic locking pieces 109b that extend from both ends of the main body 109a by resin injection molding as appropriate. Thus, at the tip of each elastic locking piece 109b, a tapered locking projection 109c is provided which is hooked to the edge of the mounting hole 101c when passing through the mounting hole 101c.

However, fixing with the adhesive tape as shown in FIGS. 11A and 11B may cause the flat cable 105 to peel off due to the secular change of the adhesive layer due to environmental conditions such as ambient temperature and humidity. It is difficult to obtain a stable fixing strength.
Further, when wiring a plurality of flat cables 105 in a laminated state using a double-sided adhesive tape, it is necessary to attach the adhesive tape to each flat cable, which is troublesome.

On the other hand, in the case of the fixing structure shown in FIGS. 12 and 13, stable fixing strength can be ensured over a long period of time, but complicated machining is required in advance for the belt-like frame portion 101 of the casing of the apparatus. An increase in the processing steps of the housing causes an increase in processing costs.
In addition, as shown in FIG. 13, when the cable fastener 109, which is separate from the casing of the apparatus, is an injection-molded product, it is costly for manufacturing an injection-molding mold and the like, resulting in an increase in cost. I will.

  Further, in the case of the fixing structure shown in FIG. 13, the locking protrusion 109 c of the cable fastener 109 protrudes to the back side of the belt-like frame portion 101, and presses the component housing space in the housing of the apparatus to connect with other members. May interfere. For example, in the case of a printing apparatus, it interferes with the moving carriage, which may cause a problem in the printing operation.

  The objective of this invention is providing the cable fastener which can fix a flat cable with respect to the housing | casing of an apparatus stably, without causing the increase in cost or the pressure of a space.

  The cable fastener according to the present invention capable of solving the above-mentioned problems is a cable fastener for fixing a flat cable wired to the belt-like frame portion of the apparatus along the belt-like frame portion, and the belt-like frame portion. A first plate portion disposed on one surface side of the first frame portion and a base end of the first plate portion disposed on one side in the width direction of the belt-shaped frame portion and on the other surface side of the belt-shaped frame portion. A second plate portion to be arranged, and a member formed on the tip side of the first plate portion, extending from the tip of the second plate portion arranged on the other side in the width direction of the belt-like frame portion. The first plate and the first plate that project to the other side in the width direction of the belt-like frame by engaging with the joint hole, and the coupling plate that couples the tips of the second plates, and the first plate Formed by cutting and raising a part of the portion or the second plate portion, A cable holding claw portion for holding a side portion of the flat cable wired along the frame portion, the first plate portion, the second plate portion, the coupling plate portion, and the cable The holding claw portion is formed integrally with a continuous flat developed plastic plate.

  The cable fastener having such a configuration is an independent fastener separate from the housing of the apparatus, and includes a first plate portion disposed on both sides of the belt-like frame portion so as to sandwich the belt-like frame portion. By joining the leading end portions of the second plate portion with the connecting plate portion, the flat cable wired along the belt-like frame portion and the belt-like frame portion are bundled together to form the flat cable into the belt-like frame. It can be fixed to the part. At that time, the side edge of the flat cable inserted through the inside of the first plate portion or the second plate portion is held by the cable holding claw portion cut and raised from the plate portion, and in the width direction of the flat cable. It is firmly fixed in a state where movement is restricted. Moreover, since the cable fastener of this invention is fixed to a strip | belt-shaped frame part in the form which clamps a strip | belt-shaped frame part with a 1st board part and a 2nd board part, a fastener is attached to the housing | casing side of an apparatus. Can be attached without special processing such as a mounting hole for increasing the processing cost of the housing of the apparatus. Furthermore, since this cable fastener is constituted by a continuous flat developed plastic plate, it can be easily manufactured at low cost by cutting out the developed shape from the plastic plate. In addition, since it can be formed of a plastic plate that is relatively thinner than the belt-like frame portion of the apparatus, the component housing space in the apparatus housing is not compressed.

  In addition, considering the thickness when a plurality of flat cables are laminated, the length of the claw portion for holding the cable is appropriately set, so that the plurality of flat cables can be put together in a laminated state. Then, it can be easily held in the cable holding claw portion and wired in a laminated state, and the wiring efficiency of the cable can be improved.

  Further, in the cable fastener of the present invention, the belt-like frame portion from the base end side of the first plate portion or the second plate portion along the side edge of the first plate portion or the second plate portion. It is preferable that a third plate portion that extends in the width direction and that forms a slit between the side edges is further provided integrally.

  The cable fastener having such a configuration can be moved in the direction intersecting the intersecting plate portion (that is, the longitudinal direction of the strip-shaped frame portion) by passing the intersecting plate portion intersecting the belt-shaped frame portion through the slit, for example. It can be surely prevented. Therefore, there is no risk that the cable fastener will be displaced on the strip frame due to the vibration of the device, etc., and it is possible to prevent the occurrence of cable slack due to the displacement of the cable fastener. Interference with surrounding members can be prevented.

  Further, in the cable fastener of the present invention, the cable holding claw portions are formed in at least two or more locations separated in the width direction of the belt-like frame portion, and the flat cable is formed by a plurality of the cable holding claw portions. In addition to the first holding portion that holds the second frame, it is preferable that a second holding portion that holds another cable wired along the belt-like frame portion is provided.

  In the cable fastener having such a configuration, in addition to the first holding part that holds the flat cable by the plurality of cable holding claws that are cut and raised inside the first plate part or the second plate part, For example, even when a power cable for a motor or the like is wired together with a flat cable, the flat cable and the power cable are bundled together by the cable fastener. Can be held in order.

  In the cable fastener of the present invention, the engagement hole is formed in a shape similar to the shape obtained by elastically deforming the tip of the coupling plate portion, and is inserted into the engagement hole in an elastically deformed state. Further, it is preferable that the tip of the coupling plate portion is retained in the engagement hole by restoring elastic deformation.

In the cable fastener having such a configuration, for example, if the tip of the coupling plate portion engaged with the engagement hole has a wide shape, the tip of the coupling plate portion inserted through the engagement hole is elastic. By restoring the deformation, the engagement hole can be reliably caught on the peripheral edge, and a large bond strength can be easily obtained.
The shape of the distal end portion of the coupling plate portion is not limited to a shape wider than the base end side of the coupling plate portion. For example, a cut may be made at the boundary between the distal end portion and the proximal end side to facilitate elastic deformation of both sides of the distal end portion. If it does in this way, a notch comes to pinch | interpose the peripheral part of an engagement hole, and more highly accurate coupling | bonding can be obtained.

  In the cable fastener of the present invention, it is preferable that the plastic plate is made of polyester.

  By configuring the cable fastener of the present invention with polyester, it is possible to have appropriate strength and flexibility for holding the flat cable. And the vibration transmitted from the apparatus to the flat cable can be appropriately attenuated, and the displacement of the flat cable and the falling off of the fastener can be prevented. Moreover, since the polyester board (film) is inexpensive and excellent in workability, the cost of the cable fastener can be kept low.

  According to the cable fastener of the present invention, the first plate portion and the distal end portion of the second plate portion, which are arranged on both sides of the belt-like frame portion so as to sandwich the belt-like frame portion, are coupled by the coupling plate portion. Thus, the flat cable wired along the strip frame portion and the strip frame portion can be bundled together to fix the flat cable to the strip frame portion. The flat cable is firmly fixed in a state in which movement in the width direction is restricted by the cable holding claw portion cut and raised from the plate portion. Moreover, since the cable fastener of this invention is comprised with the plastic plate of the continuous planar expansion | deployment shape, it can manufacture easily at low cost by cutting out the expansion | deployment shape from a plastic plate. Moreover, since it can be formed of a thin plastic plate, it does not press the component storage space in the housing of the apparatus. Therefore, the flat cable can be stably fixed to the housing of the apparatus without causing an increase in cost and space pressure.

Hereinafter, an example of an embodiment of a cable fastener according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of an ink jet printer in which the cable fastener of the present invention is used as viewed obliquely from the front side. FIG. 2 is a perspective view of the ink jet printer shown in FIG. FIG. 3 shows the state in which the upper case of the ink jet printer shown in FIG. 2 is removed and the print processing mechanism in the apparatus case and the wiring form of the flat cable are exposed as viewed from the upper front side of the apparatus obliquely. FIG. 4 is a perspective view of the ink jet printer shown in FIG. 3 as viewed obliquely from the rear side of the apparatus, and FIG. 5 is a development view of an embodiment of a cable fastener according to the present invention. FIG. 6 is a perspective view of a state of the embodiment of the cable fastener according to the present invention before attachment, and FIG. 7 is a view on the housing of the apparatus to which the cable fastener shown in FIG. 6 is attached. FIG. 8 is a perspective view of the structure of the cable portion, FIG. 8 is a perspective view of the state shown in FIG. 7 with the cable fastener shown in FIG. FIG. 10 is a cross-sectional view of a state in which the cable fastener shown in FIG. 6 is fixed to a mounting position of the casing of the apparatus shown in FIG. 10, and FIG. 10 (a) is related to the tip of the coupling plate portion of the cable fastener of the present invention. FIG. 10B is a plan view showing another example of the engagement hole, and FIG. 10B is a plan view showing another example of the engagement hole.

An ink jet printer 1 shown in FIGS. 1 and 2 is a front-feed / discharge-type business printer, and a transported object is provided at the center of the front surface of an apparatus case 4 composed of a lower case 2 and an upper case 3. A substantially box-shaped paper cassette 5 loaded with a certain paper P is detachably inserted.
Further, a paper discharge tray 6 for receiving the printed paper is provided so as to cover the open top portion of the paper cassette 5. Further, on both sides of the front surface of the device case 4, a display unit 7 and an operation unit 8 for displaying an operation state are provided.

  In the apparatus case 4, as shown in FIGS. 3 and 4, a transport mechanism 11 that transports the paper P fed one by one from the paper cassette 5 by the pickup roller of the paper feed mechanism along the U-shaped transport path, and A carriage 13 provided in the middle of the transport path so as to be able to reciprocate in a direction perpendicular to the transport direction of the paper P, and a recording mounted on the lower surface of the carriage 13 to eject fine particles of recording ink onto the paper P. A head (not shown), an ink tank 15 storing recording ink to be supplied to the recording head, and a control for controlling the conveyance speed of the paper P, the movement speed of the carriage 13, the ink ejection operation of the recording head, and the like by the conveyance mechanism 11. Part (not shown).

  The ink jet printer 1 controls the ejection of ink from the recording head mounted on the carriage 13 with the transport direction of the paper P as the sub-scanning direction and the moving direction of the carriage 13 as the main scanning direction. And image recording (printing).

The carriage 13 is supported by two guide shafts 21 and 22 extending in a direction orthogonal to the conveyance direction of the paper P so as to be reciprocally movable in a direction orthogonal to the conveyance direction of the paper P. The two guide shafts 21 and 22 are fixed to a guide support frame 24 that is fixed to a housing that supports the paper transport mechanism 11.
The carriage 13 on the guide shafts 21 and 22 is connected to a timing belt driven to travel along the guide shafts 21 and 22 by a carriage motor 26 attached to the rear wall 24a of the guide support frame 24. 22 can be moved back and forth.

  On the inner surface side of the front wall 24 b of the guide support frame 24, a composite flat cable 28 having a function as an ink tube for supplying ink from the ink tank 15 to the recording head of the carriage 13 allows the carriage 13 to reciprocate. As shown in FIG.

The composite flat cable 28 is formed by joining a plurality of ink tubes in a row to form a flat cable, and further integrating a control signal line for sending a control signal to the recording head.
The composite flat cable 28 is wired in a form that has a surplus length in a substantially U shape, and is a thin stainless steel plate for providing resilience and durability against flexible deformation during reciprocation of the carriage 13. And a base material structure in which the surface of the copper foil is covered with a polyester film.
In the composite flat cable 28, the ink tube is wired and connected to the ink tank 15, and the control signal line for sending the control signal to the recording head is wired and connected to the control unit in the apparatus in the form of the flat cable 28a. Has been.

  Here, as shown in FIGS. 3 and 4, the wiring path of the flat cable 28 a in the ink jet printer 1 is routed from the rear surface side of the carriage 13 to the front surface side of the carriage 13 so as to have a substantially U-shaped surplus portion. From the back side of the front wall 24b in the vicinity of the center of the front wall 24b of the guide support frame 24 in the apparatus width direction. A second wiring path W2 that goes out to the front side and is routed to the left end side of the apparatus along the front surface of the front wall 24b, and is bent upward from the terminal end of the second wiring path W2 so that the upper left end of the casing of the apparatus A third wiring path W3 wired on the rear side of the apparatus along the belt-like frame portion 31 and a control section in the casing of the apparatus, etc. drawn from the end of the third wiring path W3 to the lower side on the rear side of the apparatus. Connected to It can be broadly classified into a fourth wiring path W4 to that.

  Since the flat cable 28a is likely to be lifted around the folded portion 28b where the second wiring path W2 is switched to the third wiring path W3, it is desirable that the flat cable 28a be more firmly fixed to the housing. In particular, on the belt-like frame portion 31 in the vicinity of the folded portion 28b, it is desired to fix the cable firmly so that the cable that is displaced due to lifting does not interfere with the carriage 13 that reciprocates.

  In the case of the present embodiment, fixing using the cable fastener 33 according to the embodiment of the present invention is performed at the front end of the belt-like frame portion 31 in the vicinity of the folded portion 28b.

The cable fastener 33 fixes the flat cable 28 a wired to the belt-like frame portion 31 of the apparatus housing to the belt-like frame portion 31.
The belt-like frame portion 31 is a strength member made of a metal plate that is bridged along the front-rear direction on the upper left end of the housing of the apparatus. As shown in FIGS. It is fixed by screwing.
An intersecting plate portion 31a vertically bent downward is continuously provided at the front end portion of the belt-like frame portion 31, and a fastening plate portion 31b that is screwed to the housing body 35 is continuously provided at the tip of the intersecting plate portion 31a. Yes.

  As shown in FIG. 6, the cable fastener 33 according to the present embodiment has a back surface side (one surface side) of the belt-like frame portion 31 from one side in the width direction of the belt-like frame portion 31 (right rear side in FIG. 6). ) And the connecting plate portion 42 connected to the base end of the first plate portion 41 (the end portion arranged on one side in the width direction of the belt-like frame portion 31). A second plate portion 43 that extends from the connecting plate portion 42 and is inserted from the one side in the width direction of the belt-like frame portion 31 to the surface side (the other surface side) of the belt-like frame portion 31; The first plate portion 41 that extends from the front end of the plate portion 43 and protrudes to the other side in the width direction of the belt-like frame portion 31 by engaging with an engagement hole 41 a formed on the front end side of the first plate portion 41. And a connecting plate portion 45 for connecting the tip portions of the second plate portion 43 and a part of the second plate portion 43 to the inside. The cable holding claws 42 a and 42 b that hold the side portion of the flat cable 28 a wired on the belt-like frame portion 31 and the base end of the first plate portion 41 are formed by raising the belt. A third plate portion 47 extending from the connecting plate portion 42 along the side edge of the first plate portion 41 and forming a slit 46 with the side edge of the first plate portion 41 is provided.

  As shown in FIG. 5, each part (reference numerals 41, 42, 43, 45, 45, 47) of the cable fastener 33 is a plane in which the respective parts (reference numerals 41, 42, 43, 45, 45, 47) are continuous. It is integrally formed by cutting out from a thin plastic plate with a typical developed shape. In the present embodiment, a 0.3 mm thick polyester film is used as the plastic plate.

  As shown in FIG. 6, the slit 46 is configured such that the side edge position of the first plate portion 41 is aligned with the inner surface of the intersecting plate portion 31 a and the first plate portion 41 is inserted into the back surface side of the belt-like frame portion 31. Thus, the crossing plate portion 31 a is fitted, and the cable fastener 33 is restricted from moving along the longitudinal direction of the belt-like frame portion 31.

  As shown in FIG. 10A, the coupling plate portion 45 includes a base end portion 45a connected to the tip end of the second plate portion 43 and a wide portion provided continuously to the tip end of the base end portion 45a. 45b. The wide part 45b is set to be wider than the base end part 45a, and both sides on the distal end side are formed with tapered surfaces 45c for facilitating insertion into the first plate part 41. In addition, notches 45d are formed at the boundary between the base end portion 45a and the wide portion 45b to make it easier to bend both sides of each wide portion 45b.

  As shown in FIG. 10A, the shape of the engagement hole 41a formed at the tip of the first plate portion 41 is such that both sides of the wide portion 45b of the coupling plate portion 45 are elastically deformed into a predetermined inclined state. It is formed in a shape similar to the shape (the shape in which both side edges are bent as indicated by the arrow Y). Therefore, when the elastic deformation of the wide portion 45b is restored after the both sides of the wide portion 45b of the coupling plate 45 are inserted into the engagement hole 41a in a state of being elastically deformed in a predetermined inclined state, both sides of the wide portion 45b are restored. Is caught on the periphery of the engagement hole 41a and is prevented from coming off.

Next, a procedure for attaching the cable fastener 33 will be described.
The unfolded cable fastener 33 cut out from the polyester film is bent at the positions indicated by two-dot chain lines X1, X2, and X3 in FIG.
And as shown in FIG. 8, the 1st board part 41 is penetrated from the one side of the width direction of the strip | belt-shaped frame part 31 to the back surface side. Further, the second plate portion 43 is passed through the surface side of the strip frame portion 31 so as to cover the flat cable 28 a wired on the strip frame portion 31. And if the front-end | tip of the 1st board part 41 and the 2nd board part 43 protrudes in the other side of the width direction of the strip | belt-shaped frame part 31, the wide part 45b of the front-end | tip of the board part 45 for a coupling | bonding will be 1st board part. 41, the front end of the first plate portion 41 and the second plate portion 43 are connected to each other.

  Then, as shown in FIG. 9, the flat cable 28a is inserted between the cut and raised cable holding claws 42a and 42b. The pair of cable holding claws 42a and 42b are spring backs when cut and raised, and can hold the flat cable 28a from both sides in the width direction to firmly fix the flat cable 28a.

  In the case of the present embodiment, a space for holding the flat cable 28a is provided between the second plate portion 43 and the belt-like frame portion 31 by the cable holding claws 42a and 42b provided at two places. A second holding portion 49 that is another space is formed adjacent to the certain first holding portion 48. Therefore, the second holding part 49 can accommodate and hold another cable 51 such as a motor driving power cable arranged and wired in the flat cable 28a.

  In the present embodiment, as shown in FIG. 9, the first plate portion 41 inserted through the back surface side of the belt-like frame portion 31 is adhered to the back surface of the belt-like frame portion 31 by the double-sided adhesive tape 54. It is fixed. As a result, the center of the first plate portion 41 is bent downward and deformed, or the entire cable fastener 33 is displaced downward, and the space in the housing can be prevented from being compressed, and the reciprocating operation is performed. Interference with the carriage 13 can be prevented.

  The cable fastener 33 described above is an independent fastener that is separate from the housing of the apparatus, and is the first fastener inserted through the back surface side and the front surface side of the belt frame 31 so as to sandwich the belt frame 31. The flat cable 28 a wired on the belt-like frame portion 31 and the belt-like frame portion 31 are bundled together by joining the tip portions of the plate portion 41 and the second plate portion 43 with the joint plate portion 45. The shape is fixed to the belt-like frame portion 31. At that time, the flat cable 28a inserted through the inside of the second plate portion 43 is held at both side edges by the cable holding claws 42a and 42b integrally formed with the second plate portion 43, and firmly Fixed. Therefore, compared with the conventional fixing structure in which the flat cable is directly attached to the strip frame 31 with the adhesive tape, there is no decrease in fixing strength due to the secular change of the adhesive layer, and the flat cable 28a is connected to the strip frame portion of the casing of the apparatus. 31 can be fixed with a stable fixing strength over a long period of time.

  Further, by inserting the intersecting plate portion 31a intersecting the belt-like frame portion 31 into the slit 46 formed by the third plate portion 47, the direction intersecting the intersecting plate portion 31a (that is, the length of the belt-like frame portion 31). In the direction along the direction) can be reliably prevented. Therefore, there is no risk that the cable fastener 33 is displaced on the belt-like frame portion 31 due to the vibration of the apparatus, and the occurrence of slack in the flat cable 28a due to the displacement of the cable fastener 33 can be prevented. The slack of the cable 28a can prevent the flat cable 28a from interfering with surrounding objects and being contaminated.

  Further, considering the thickness when the plurality of flat cables 28a are laminated, the lengths of the cable holding claws 42a and 42b integrally formed with the second plate portion 43 are appropriately set. In this case, a plurality of flat cables 28a can be collectively held in the laminated state by the cable holding claws 42a and 42b, and the plurality of flat cables 28a can be easily wired in the laminated state. And the wiring efficiency of the cable can be improved.

Furthermore, since the cable fastener 33 of the present invention is fixed to the belt-like frame portion 31 in such a manner that the belt-like frame portion 31 is sandwiched between the first plate portion 41 and the second plate portion 43, Can be mounted without special processing such as mounting holes for mounting the fastener, and the processing cost of the housing of the apparatus is not increased.
Furthermore, since the cable fastener 33 of the present invention is formed by cutting out the developed shape from a plastic plate, it can be quickly produced by press molding or the like, and compared with a conventional injection molded product fastener made of resin. In addition, an expensive mold for injection molding is not required, and the cost can be significantly reduced.

The plastic plate from which the developed shape of the cable fastener 33 of the present invention is cut out is preferably, for example, a polyester film having a thickness of about 0.3 mm. Thereby, moderate intensity | strength and flexibility for hold | maintaining the flat cable 28a can be provided. The vibration transmitted from the apparatus to the flat cable 28a can be moderately attenuated by the cable fastener 33, and the displacement of the flat cable 28a and the falling off of the cable fastener 33 can be prevented. Moreover, since the polyester film is inexpensive and excellent in workability, the cost of the cable fastener 33 can be kept low. Then, by setting the thickness to 0.3 mm, the amount of protrusion of the belt-like frame portion 31 toward the back surface is only about 0.3 mm, which is the thickness of the first plate portion 41. Compared with the case where the tool is fitted and attached to the belt-like frame portion 31, the amount of protrusion of the belt-like frame portion 31 to the back surface side is greatly reduced, and it is possible to avoid compression of the component housing space in the housing of the apparatus, thus saving space. Can also be achieved.
However, the thickness of the plastic plate from which the developed shape is cut out is not limited to 0.3 mm. It is preferable to select a polyester film having an appropriate thickness according to the strength and weight of the cable to be held.

  Furthermore, in the case of the cable fastener 33 according to the above embodiment, the cable holding claws 42 a and 42 b are provided at two positions spaced apart in the width direction of the belt-like frame portion 31 on the second plate portion 43. Therefore, in addition to the first holding portion 48 that holds the flat cable 28a, the other cables are held inside the second plate portion 43 by the two cable holding claws 42a and 42b that are cut and raised. The second holding part 49 is secured. Therefore, as shown in FIG. 9, for example, even when another cable 51 such as a motor driving power cable is wired together with the flat cable 28a, both the flat cable 28a and the other cable 51 are The cable fasteners 33 can be collectively held in a lump.

  Furthermore, in the case of the cable fastener 33 of the present embodiment, the coupling plate portion 45 has a shape in which the tip engaged with the engagement hole 41a is widened, and the shape of the engagement hole 41a is the coupling plate. Since the both sides of the tip of the portion 45 are elastically deformed, the tip of the coupling plate portion 45 inserted into the engagement hole 41a in the elastically deformed state is restored from the elastic deformation of the wide portion. As a result, the wide portion is reliably hooked to the peripheral edge portion of the engagement hole 41a, and a large coupling strength can be easily obtained.

  The shape of the distal end portion of the coupling plate portion 45 is not limited to a shape that is wider than the proximal end side of the coupling plate portion 45. For example, as shown in the above-described embodiment, it is only necessary to make a cut 45d at the boundary between the distal end portion and the proximal end side so that both sides of the distal end portion are easily bent and deformed. If it does in this way, a notch comes to pinch | interpose the peripheral part of the engagement hole 41a, and a more highly accurate coupling | bonding is realizable.

  In the cable fastener according to the present invention, the shape of the engagement hole 41a formed in the first plate portion 41 is not limited to the shape shown in FIG. As shown in FIG. 10B, a smooth curved shape can also be set.

  Further, the portions where the cable holding claws 42 a and 42 b are formed are not limited to the second plate portion 43. For example, when the flat cable 28 a is wired on the back side of the belt-like frame portion 31, the first plate portion 41 may be provided with cable holding claws 42 a and 42 b. It is also possible to provide cable holding claws on both the first plate portion 41 and the second plate portion 43 and hold the composite flat cable inside each plate portion.

  Furthermore, the number of the cable holding claws is not limited to two. For example, only one cable holding claw portion may be provided, and a space between the cable holding claw portion and the connecting plate portion 42 may be used as a holding space for the flat cable 28a. In addition, cable holding claws are provided at three or more locations spaced apart in the width direction of the belt-like frame 31 so that a plurality of flat cables 28a are held in parallel, or various cables are separated for each application. It is also possible to make a structure that holds the same.

  Moreover, in the said embodiment, as shown in FIG. 9, although the 1st board part 41 was affixed on the strip | belt-shaped frame part 31 with the double-sided adhesive tape 54, the cable fastener 33 becomes loose by the vibration etc. of an apparatus. When there is no fear, when there is no possibility that the first plate portion 41 is loosened inside the housing, the sticking with the double-sided adhesive tape 54 may be omitted.

  In the example shown in FIG. 9, a gap is secured between the surface of the belt-like frame portion 31 and the tip portions of the cable holding claws 42a and 42b, but the cable holding claws 42a and 42b It is also conceivable to increase the fixing strength to the band-shaped frame part 31 by setting the dimensions so that the tip is in contact with the surface of the band-shaped frame part 31.

  Furthermore, the device using the cable fastener according to the present invention is not limited to the printer shown in the above embodiment. In various electronic devices and electric devices other than printers, it can be usefully used as a fastener for a flat cable housing.

  Further, the flat cable held by the cable fastener according to the present invention widely includes cables having a flat cross-sectional shape, for example, a flat cable in which a plurality of covered electric wires are integrated in a flat shape, an ink A plurality of tubes that are used as passages or the like are flatly joined and formed into a cable shape, and a flexible wiring board having a structure in which both sides of a printed wiring circuit are covered with an insulating film are also included.

It is the perspective view which looked at the ink jet type printer in which the cable fastener of this invention is used from the front side diagonally upward. FIG. 2 is a perspective view of a state where a paper discharge tray of the ink jet printer shown in FIG. 1 is removed. FIG. 3 is a perspective view of a state in which the upper case of the ink jet printer shown in FIG. 2 is removed and a print processing mechanism and a wiring form of a flat cable in the apparatus case are exposed as viewed from the upper front side of the apparatus. FIG. 4 is a perspective view of the ink jet printer shown in FIG. 3 as viewed obliquely from above the rear side of the apparatus. It is an expanded view of one Embodiment of the cable fastener which concerns on this invention. It is a perspective view of the state before attachment of one Embodiment of the cable fastener which concerns on this invention. It is a perspective view of the structure of the attachment location on the apparatus case to which the cable fastener shown in FIG. 6 is attached. It is a perspective view of the state which inserted the cable fastener of one Embodiment in the attachment location of the apparatus case shown in FIG. It is sectional drawing of the state which fixed the cable fastener of one Embodiment to the attachment location of the apparatus case shown in FIG. (A) is a top view of the engagement hole with which the front-end | tip of the board part for a coupling | bonding of the cable fastener of one embodiment of this invention engages, (b) is a plane of other embodiment of the said engagement hole. FIG. It is a side sectional view showing the fixed structure by pasting of a conventional flat cable, (a) is a side sectional view when a double-sided adhesive tape is used for pasting, (b) is a case of using an acetate tape for pasting It is a sectional side view. It is explanatory drawing of the conventional fixing structure which fixes and fixes a flat cable by cutting and forming a cable latching claw in the strip | belt-shaped frame part of an apparatus case, (a) is a perspective view, (b) is AA of (a). It is sectional drawing which follows a line. It is explanatory drawing of the conventional fixing structure which fixes a flat cable by carrying out fitting attachment of a separate cable fastener to the strip | belt-shaped frame part of an apparatus case, (a) is a perspective view, (b) is B of (a). It is sectional drawing which follows the -B line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printer 2 Lower case 3 Upper case 4 Apparatus case 13 Carriage 28 Composite flat cable 28a Flat cable 28b Folding location 31 Band-shaped frame part 31a Crossing board part 31b Fastening board part 33 Cable fastener 41 First board part 41a Engagement hole 42 Connecting plate portion 42a, 42b Cable holding claw portion 43 Second plate portion 45 Coupling plate portion 45a Base end portion 45b Wide portion 45c Tapered surface 45d Notch 46 Slit 47 Third plate portion 48 First holding portion 49 Second Holding part 51 Other cable 54 Double-sided adhesive tape

Claims (5)

A cable fastener for fixing a flat cable wired to the belt-like frame portion of the apparatus along the belt-like frame portion,
A first plate portion disposed on one side of the belt-like frame portion;
A second plate portion extending from a base end of the first plate portion disposed on one side in the width direction of the belt-shaped frame portion and disposed on the other surface side of the belt-shaped frame portion;
Extending from the tip of the second plate portion disposed on the other side in the width direction of the belt-like frame portion, and engaging the engagement hole formed on the tip side of the first plate portion, the belt shape. A coupling plate portion for coupling the tip portions of the first plate portion and the second plate portion protruding to the other side in the width direction of the frame portion;
A cable holding claw portion that is formed by cutting and raising a part of the first plate portion or the second plate portion, and holds a side portion of the flat cable wired along the belt-like frame portion,
The first plate portion, the second plate portion, the coupling plate portion, and the cable holding claw portion are integrally formed by a continuous flat developed plastic plate. Cable fastener characterized by that. The cable fastener according to claim 1,
Along the side edge of the first plate portion or the second plate portion, it extends in the width direction of the strip frame portion from the base end side of the first plate portion or the second plate portion, and the side edge and A cable fastener, further comprising a third plate portion that forms a slit therebetween. The cable fastener according to claim 1 or 2,
The cable holding claws are formed in at least two or more locations spaced in the width direction of the belt-like frame portion, and a plurality of the cable holding claws, in addition to the first holding portion that holds the flat cable. A cable fastener, wherein a second holding part for holding another cable wired along the belt-like frame part is provided. The cable fastener according to any one of claims 1 to 3,
The engagement hole is formed in a shape similar to the shape obtained by elastically deforming the tip of the coupling plate portion, and the tip of the coupling plate portion inserted through the engagement hole in an elastically deformed state is A cable fastener, wherein the cable fastener is retained in the engagement hole by restoring elastic deformation. The cable fastener according to any one of claims 1 to 4,
A cable fastener, wherein the plastic plate is made of polyester.

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