JP2006021367A - Recording head and recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED To realize a long life of a recording head by suppressing breakage of a recording lever and suppressing breakage of a return coil spring.
In a recording head that includes a recording lever 47, an end 61A abuts against the recording lever 47, and includes a return coil spring 61 that returns the recording lever 47, the end 61A of the return coil spring 61 is The coil wire was formed by winding a plurality of layers in the coil radial direction.
[Selection] Figure 5

Description

  The present invention relates to a recording head having a return coil spring for returning a recording lever, and a recording apparatus including the recording head.

  In general, the recording apparatus includes a recording head mounted on a carriage, and a recording member of this recording head, specifically, a recording lever or a recording pin or recording wire provided at the recording lever tip, 2. Description of the Related Art A dot impact printer that records an image on a sheet by hitting a sheet conveyed on a platen via an ink ribbon fed out from a ribbon cartridge is known.

The recording head of this type of recording apparatus includes a return coil spring that returns the recording lever to the standby position, and the return coil spring is housed in the spring holder so that the end of the return coil spring contacts the recording lever. (For example, refer to Patent Document 1).
JP 2003-127442 A

  By the way, in the recording apparatus, since the pressing force of the return coil spring acts locally on the contact portion of the recording lever with which the end of the return coil spring contacts, the contact portion of the recording lever is worn. It's easy to do. Further, when the recording apparatus is operated for recording over a long period of time, there is a problem that a crack is generated from the worn contact portion and the recording lever breaks due to the growth of the crack. In addition, the contact portion of the recording lever may become sharp when worn, and the return coil spring that contacts the worn contact portion may be damaged and damaged.

  Accordingly, an object of the present invention is to eliminate the problems of the conventional technology described above, suppress the breakage of the recording lever, and suppress the breakage of the return coil spring, thereby realizing a recording head and recording that can realize a long life. To provide an apparatus.

In order to solve the above-described problems, the present invention provides a recording head that includes a recording lever, the end of which is in contact with the recording lever, and the return coil spring that returns the recording lever. The end portion is formed by winding a coil wire in a plurality of layers in the coil radial direction.
According to the above configuration, the end portion of the return coil spring is formed by winding the coil wire in a plurality of layers in the coil radial direction, thereby increasing the area of the end portion of the return coil spring. Since the stress applied to the contact portion of the recording lever with which the portion contacts is reduced, breakage of the recording lever can be suppressed, and breakage of the return coil spring can be suppressed. Therefore, it is possible to realize a long life of the recording head.

  In the recording head, coil wires wound around the plurality of layers may be brought into close contact with each other to form an oil reservoir between the coil wires.

  In the recording head, the coil wire may be externally wound and / or internally wound at the end of the return coil spring.

  A spring holder having a hole into which the return coil spring is fitted; a slit is provided at an opening end of the hole of the spring holder; and the recording lever is provided at the end of the return coil spring through the slit. You may make it contact | abut.

In the recording apparatus in which the recording head mounted on the carriage includes a recording lever, and the recording lever records an image on the sheet conveyed on the platen, the recording head has an end portion for the recording. A return coil spring that contacts the lever and returns the recording lever is provided, and the end of the return coil spring is formed by winding a plurality of layers of coil wires in the coil radial direction. is there.
According to the above configuration, the end portion of the return coil spring is formed by winding the coil wire in a plurality of layers in the coil radial direction, thereby increasing the area of the end portion of the return coil spring. Since the stress applied to the contact portion of the recording lever with which the portion contacts is reduced, breakage of the recording lever can be suppressed, and breakage of the return coil spring can be suppressed. Therefore, it is possible to realize a long life of the recording head.

  In the recording apparatus, coil wires wound around the plurality of layers may be brought into close contact with each other to form an oil reservoir between the coil wires.

  In the recording apparatus, the coil wire may be externally wound and / or internally wound at the end of the return coil spring.

  In the recording apparatus, the recording head includes a spring holder in which a hole into which the return coil spring is fitted is formed, and a slit is provided at an opening end of the hole of the spring holder, and the recording lever includes the slit It may be made to contact with the end of the return coil spring.

  According to the present invention, it is possible to extend the life by suppressing breakage of the recording lever and suppressing breakage of the return coil spring.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[1] First Embodiment FIG. 1 is a perspective view showing a printer main body 11 of a dot impact printer 10 to which a first embodiment of a recording apparatus according to the present invention is applied. FIG. 2 is a side sectional view showing the printer main body 11 of FIG.

  The printer 10 as the recording apparatus shown in these drawings strikes a plurality of recording wires of the recording head 18 against the sheet S via the ink ribbon 31 (FIG. 2), thereby recording an image including characters. This is a dot impact printer for printing. Here, the sheet S is a passbook, a postcard, an envelope, or the like in addition to plain paper such as cut paper or continuous paper. Note that the cut sheet paper may be cut sheet copy paper, and the continuous sheet may be continuous copy sheet.

  The printer 10 includes a printer main body 11 as a recording apparatus main body, a push tractor unit 12 and a discharge unit 13 that are detachably mounted on the printer main body 11, and a sheet supply guide that is also detachably mounted on the printer main body 11. 34 (FIG. 2), and an upper case and a lower case (not shown) that cover the upper and lower portions of the printer main body 11, respectively.

  The printer main body 11 includes a base frame 14 as a main body frame, a sheet guide frame 15 (FIG. 2), a left side frame 16 and a right side frame 17, a printing mechanism 20 including a recording head 18 and a carriage 19, and a platen 21. And a sheet conveying mechanism 23 having a sheet guide 22 and a pinch roller 25 (FIG. 2).

  The base frame 14 and the seat guide frame 15 are arranged substantially in parallel as shown in FIG. 2, and the left side frame 16 and the right side frame 17 are provided upright at both ends of the base frame 14 and the seat guide frame 15, respectively. Fixed. As shown in FIG. 1, a carriage shaft 24 is bridged between the left side frame 16 and the right side frame 17, and is pivotally supported. A carriage guide shaft 28 serving as a carriage guide member is bridged. And fixedly supported. Further, the platen 21 is fixed to the platen shaft 33 so as to rotate integrally. The platen shaft 33 is bridged between the left side frame 16 and the right side frame 17 and is pivotally supported.

  The seat guide 22 is disposed between the left side frame 16 and the right side frame 17 and is fitted and fixed to the seat guide frame 15. In addition, a tractor unit mounting portion and a discharge unit mounting portion (not shown) to which the push tractor unit 12 and the discharge unit 13 can be mounted, respectively, are provided at the rear and upper portions of the left side frame 16 and the right side frame 17, respectively. Yes.

  The push tractor unit 12 shown in FIG. 1 feeds continuous sheets as sheets S to the sheet transport mechanism 23, and the sheet supply guide 34 supplies cut sheets as sheets S to the sheet transport mechanism 23 one by one. . The discharge unit 13 pulls out continuous paper or cut sheet paper from the sheet transport mechanism 23 to the outside of the printer 10.

  That is, as shown in FIG. 2, the rotation of the tractor belt 26 of the push tractor unit 12 causes the continuous paper to be guided to the sheet guide 22 of the sheet transport mechanism 23 by the action of the pin 27 of the tractor belt 26. Heading 21 and feeding in the direction of arrow M. When the push tractor unit 12 is not in operation, a single sheet can be supplied from the sheet supply guide 34 to the platen 21 via the sheet guide 22 one by one. The platen 21 is a substantially cylindrical round platen, and functions as a sheet conveying roller that conveys the supplied sheet S. Although the platen 21 functions as a sheet conveying roller, the printer main body 11 may include a sheet conveying roller that conveys the sheet S separately from the platen 21.

  Further, as described later, the continuous paper or the cut sheet on which characters or the like are recorded by the recording head 18 is pulled out from the platen 21 of the sheet transport mechanism 23 in the direction of arrow N by the rotation of the discharge roller 29 of the discharge unit 13. . As a result, the continuous sheet or cut sheet is conveyed in the sub-scanning direction orthogonal to the later-described main scanning direction of the carriage 19.

  The platen 21 and the discharge roller 29 are driven by a sheet conveyance motor (sheet conveyance drive unit) 39 shown in FIG. The sheet conveying motor 39 is fixed to the right side frame 17.

  The carriage 19 is slidably inserted into the carriage shaft 24 and the carriage guide shaft 28 and has the recording head 18 mounted thereon. Since the carriage shaft 24 and the carriage guide shaft 28 are arranged in parallel with the platen 21, the carriage 19 moves (travels) in the main scanning direction that coincides with the axial directions of the platen 21, the carriage shaft 24, and the carriage guide shaft 28. ) Provided possible.

  The carriage 19 travels (scans) by a carriage drive system including a carriage drive motor (carriage drive unit) 36 and a timing belt 30. The carriage drive motor 36 is fixed to the base frame 14, and a carriage drive pulley 37 is attached to the carriage drive motor 36 so as to rotate together. A carriage driven pulley 38 is elastically supported on the left side frame 16 via a spring (not shown). The timing belt 30 is wound around the carriage driving pulley 37 and the carriage driven pulley 38, and the carriage 19 is coupled to the timing belt 30.

  Accordingly, the carriage 19 is guided to the carriage shaft 24 and the carriage guide shaft 28 via the timing belt 30 by the forward or reverse rotation of the carriage drive motor 36, and reciprocates leftward or rightward in FIG. 1 in the main scanning direction. .

  The recording head 18 is a dot impact type recording head and includes a large number of recording wires. The ink ribbon 31 is positioned in front of the recording wires in the protruding direction. While the recording head 18 travels in the main scanning direction together with the carriage 19, the recording wire protrudes and strikes the ink ribbon 31, and the ink on the ink ribbon 31 is conveyed between the platen 21 and the ink ribbon 31. A recording operation for recording an image including characters on the sheet S is performed.

  This recording operation by the recording head 18 is performed by recording one line by the recording wire of the recording head 18 while the carriage 19 travels leftward or rightward in the main scanning direction. When the sheet S is continuous paper, the platen 21, the push tractor unit 12 and the discharge unit 13 of the sheet conveying mechanism unit 23 shown in FIG. 2 are used. When the sheet S is cut sheet, the sheet conveying mechanism unit 23 is used. The platen 21, the pinch roller 25, and the discharge unit 13 each carry the sheet S by a predetermined amount (for a normal line), and these operations are repeated.

  Reference numeral 32 shown in FIG. 2 is a bottom sheet that is formed between the base frame 14 and the sheet guide frame 15 so as to supply the sheet S from below the printer 10 into the sheet transport mechanism 23. Supply port.

  Further, a control board 50 for controlling the entire printer 10 such as control of the carriage drive motor 36 and the sheet conveying motor 39 and control of the recording operation by the recording wire of the recording head 18 is disposed below the rear side of the printer main body 11, for example. Is done.

  Next, the recording head 18 will be described in detail. FIG. 3 is a perspective view showing the recording head 18. 4 is a cross-sectional view of the recording head 18 taken along line IV-IV in FIG. As shown in FIGS. 3 and 4, the recording head 18 is configured such that a nose 41 is connected to a head driving unit 40, and a radiator 42 is disposed outside the head driving unit 40. In FIG. 4, the recording wire 35 is shown protruding from the tip of the nose 41.

  As shown in FIG. 4, the head drive unit 40 includes a front-stage recording head unit 90 and a rear-stage recording head unit 91 having substantially the same configuration as the front-stage recording head unit 90. The latter recording head unit 91 is overlapped.

  Here, since the upstream recording head unit 90 and the downstream recording head unit 91 have substantially the same configuration, in the description of the recording head units 90 and 91, the configuration of the upstream recording head unit 90 will be described below. In the recording head unit 91, the same parts as those in the preceding recording head unit 90 are denoted by the same reference numerals and description thereof is omitted.

  The front recording head unit 90 includes a substantially ring-shaped yoke 44 and a side yoke 45 sequentially stacked on one side (opposite side of the nose 41) of a substantially ring-shaped frame 43, and a lever holder 46. Be placed. The lever holder 46 integrally presses a recording lever 47 for recording an image on a sheet. A substantially cylindrical spring holder 49 is disposed on the inner periphery of the frame 43.

  The frame 43 is made of a soft magnetic material (for example, permendur or 1% silicon steel), and a plurality of cores 53 are radially formed integrally with a predetermined interval on a concentric circle. An electromagnetic coil 54 is assembled to each core 53 via a bobbin, and an electromagnet 55 is configured by the core 53 and the electromagnetic coil 54. A substrate 56 on which an electric circuit for energizing the electromagnetic coil 54 is disposed on the nose 41 direction side of the frame 43.

  The nose 41 guides the advance / retreat operation including the above-described projecting operation of the recording wire 35 in the recording head units 90, 91. That is, the advance / retreat operation of the recording wire 35 is guided by a plurality of intermediate guides 57 and tip guides 58 formed in the nose 41. Here, the recording wire 35 of the rear recording head unit 91 is inserted from behind the front recording head unit 90 and is guided by the intermediate guide 57 and the front end guide 58 of the nose 41.

  Each of the yoke 44 and the side yoke 45 accommodates one recording lever 47 in each of a plurality of recesses formed in the circumferential direction, and the base ends of these recording levers 47 are based on the fulcrum shaft 52. It is rotatably supported.

  A recording wire 35 is attached to the tip of each recording lever 47. Further, the spring holder 49 accommodates a return coil spring 61 as a compression coil spring that applies a return force in the vicinity of the tip of each recording lever 47.

  Each recording lever 47 is provided with an armature 60 at a position facing each core 53. When the electromagnetic coil 54 of the electromagnet 55 is energized and a magnetic circuit is formed around the armature 60, the armature 60 is attracted to the core 53 by the attraction force generated by exciting the core 53. As a result, the recording lever 47 rotates in the direction of the nose 41 around the fulcrum shaft 52 to the protruding position where the recording wire 35 protrudes from the tip of the nose 41, and the recording wire 35 protrudes from the tip of the nose 41. Due to the protrusion of the recording wire 35, the recording head 18 transfers the ink of the ink ribbon 31 disposed to face the recording head 18 to the sheet S on the platen 21.

  FIG. 5 is a main part explanatory view showing the vicinity of the return coil spring 61 of the recording head 18 including the return coil spring 61. In FIG. 5, the spring holder 49 is partially cut out for convenience of explanation. FIG. 6 is a perspective view showing the return coil spring 61, and FIG. 7 is a partial cross-sectional view of the return coil spring 61.

  As shown in FIG. 5, a plurality of holes 62 into which the return coil springs 61 are fitted are formed on the end of the spring holder 49 on a concentric circle with a predetermined interval. A slit 63 extending toward the bottom surface of the hole 62 is formed at the open end of each hole 62 in the spring holder 49. These slits 63 are formed radially at positions corresponding to the holes 62 in the spring holder 49. The slits 63 are set to have a width wider than the thickness of the recording lever 47 and a width thinner than the diameter of the hole 62. Each recording lever 47 is loosely inserted into each slit 63 so that the distal end is disposed inside the spring holder 49 and the proximal end is disposed outside the spring holder 49. As a result, the recording lever 47 is in contact with one end portion 61 </ b> A of the return coil spring 61 fitted into the hole 62 through the slit 63. Further, the other end portion 61 </ b> B (FIG. 6) of the return coil spring 61 is in contact with the bottom surface of the hole 62. Accordingly, each recording lever 47 is always urged in the direction opposite to the nose 41 (FIG. 4) by each return coil spring 61 and returned to the standby position (position where the recording wire 35 is retracted).

  Thus, each recording lever 47 is in contact with one end portion 61A of the return coil spring 61 fitted in the hole 62 through the slit 63, so that the end portion 61A of the return coil spring 61 extends from the opening end of the hole 62. The entire return coil spring 61 is fitted into the hole 62 without protruding. Accordingly, when the recording lever 47 is rotated about the fulcrum shaft 52 as the fulcrum shaft 52, the return coil spring 61 is guided by the inner wall of the hole 62 to expand and contract. One end portion 61A of the return coil spring 61 does not shift in the coil radial direction. As a result, the wear of the abutting portion of the recording lever 47 with which the one end portion 61A of the return coil spring 61 abuts is suppressed, and the recording lever 47 operates stably, thereby suppressing a decrease in recording quality. Can do.

  By the way, in this 1st Embodiment, as shown in FIG. 5 thru | or FIG. In the embodiment, it is formed by being wound in two layers. More specifically, the one end portion 61A of the return coil spring 61 is formed by winding a coil wire in two layers toward the outside in the coil radial direction. Here, the coil wires wound in two layers at the one end portion 61 </ b> A of the return coil spring 61 are aligned in the coil radial direction, and the coil wires of the respective layers abut against the recording lever 47. As a result, the contact area between the contact portion of the recording lever 47 and the one end portion 61A of the return coil spring 61 increases, so that the stress applied to the contact portion of the recording lever 47 is reduced. Wear of the contact portion is suppressed. As described above, since the wear of the contact portion of the recording lever 47 is suppressed, breakage of the recording lever 47 can be suppressed, and damage to the return coil spring 61 can be suppressed. Therefore, the life of the recording head 18 can be extended.

  Further, since it is not necessary to separately provide a member for increasing the contact area in the one end portion 61A of the return coil spring 61 or the recording lever 47, workability when assembling the recording head 18 is good. Further, since the area of the one end portion 61A of the return coil spring 61 is increased, it is not necessary to separately provide a member for increasing the contact area on the recording lever 47, so that the recording lever 47 can be kept lightweight. it can.

  Further, the other end portion 61B (FIG. 6) of the return coil spring 61 is formed with a single winding of the coil wire in the coil radial direction, as is conventional. Accordingly, the return coil spring 61 is housed so that the one end portion 61A of the return coil spring 61 fits in the hole 62 and the other end portion 61B of the return coil spring 61 does not move in the coil radial direction in the hole 62. The hole 62 is formed in a step shape so that at least one end 61 </ b> A of the return coil spring 61 moves in a wide range.

  Next, when the recording head 18 is assembled, lubricating oil is applied to the return coil spring 61, but the oil applied to the return coil spring 61 easily flows into the hole 62 of the spring holder 49, and the recording lever 47. The oil tends to be exhausted at one end 61A of the return coil spring 61 that contacts the spring.

  Therefore, in the first embodiment, at one end portion 61A of the return coil spring 61, the coil wires of each layer are wound so as to be in close contact with each other, and an oil reservoir 64 is formed between the coil wires of each layer. The cross-sectional shape of the coil wire of the return coil spring 61 is circular or substantially circular.

  The oil is stored in the oil reservoir 64 of the return coil spring 61 by applying oil to the recording lever 47 and the return coil spring 61 when the recording head 18 is assembled. The oil accumulated in the oil reservoir 64 in this way remains in the oil reservoir 64 with almost no scattering even in a long-term recording operation. As the oil is stored in the oil reservoir 64 in this way, the oil stored in the oil reservoir 64 is supplied to the contact portion of the recording lever 47 with which the one end portion 61A of the return coil spring 61 contacts. Accordingly, wear of the recording lever 47 can be suppressed, breakage of the recording lever 47 can be suppressed, and damage to the return coil spring 61 can be suppressed. Thereby, the life of the recording head 18 can be extended.

  Even if the oil in the oil reservoir 64 decreases due to a long-term recording operation of the recording head 18, if the one end 61 </ b> A of the return coil spring 61 is worn, the oil stored in the oil reservoir 64 Therefore, the lubricity can be effectively maintained.

[2] Second Embodiment In the first embodiment, the case where the one end portion of the return coil spring is formed in an outer winding in the coil radial direction has been described. However, in the second embodiment, The difference is that one end of the return coil spring is formed in an inner winding in the coil radial direction.

  FIG. 8 is a main part explanatory view showing the vicinity of the return coil spring 161 of the recording head including the return coil spring 161 in the second embodiment. In FIG. 8, a part of the spring holder 149 is cut out for convenience of explanation. FIG. 9 is a perspective view showing the return coil spring 161. Hereinafter, in this 2nd Embodiment, the part similar to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the second embodiment, one end portion 161A of the return coil spring 161 is wound around a plurality of layers (two layers in the second embodiment) in the coil radial direction as shown in FIGS. Has been formed. More specifically, one end portion 161A of the return coil spring 161 is formed by winding a coil wire in two layers inward in the coil radial direction. Here, the coil wires wound in two layers at the one end portion 161 </ b> A of the return coil spring 161 are aligned in the coil radial direction, and the coil wires of each layer abut against the recording lever 47. As a result, the contact area between the contact portion of the recording lever 47 and the one end portion 161A of the return coil spring 161 increases, so that the stress applied to the contact portion of the recording lever 47 is reduced. Wear of the contact portion is suppressed. As described above, since the wear of the contact portion of the recording lever 47 is suppressed, breakage of the recording lever 47 can be suppressed, and breakage of the return coil spring 161 can be suppressed. Therefore, it is possible to realize a long life of the recording head.

  In addition, at one end portion 161A of the return coil spring 161, the coil wires of each layer are wound so as to be in close contact with each other, and an oil reservoir portion 164 is formed between the coil wires of each layer. When oil is collected in the oil reservoir 164, wear of the recording lever 47 can be suppressed, breakage of the recording lever 47 can be suppressed, and damage to the return coil spring 161 can be suppressed. Therefore, the life of the recording head can be extended.

  Further, the hole 162 formed in the spring holder 149 in the second embodiment has a stepped shape as in the first embodiment because the coil wire of the one end portion 161A of the return coil spring 161 is formed in an inner winding. There is no need to form. Therefore, the hole 162 can be easily processed.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to this.

  For example, in the first embodiment, the case where the coil wire is externally wound at one end of the return coil spring will be described. In the second embodiment, the coil wire is internally wound at one end of the return coil spring. However, the present invention is not limited to this, and the first embodiment and the second embodiment may be combined. That is, the coil wire may be externally wound at one end of the return coil spring, and further the coil wire may be internally wound at the other end of the return coil spring. Also in this case, as in the first and second embodiments, it is possible to achieve an increase in the life of the recording head.

  In the first and second embodiments described above, the case where one end of the return coil spring has a plurality of turns and the other end has a single turn has been described. However, both ends of the return coil spring may have a plurality of turns. . As a result, when the return coil spring is fitted into the hole of the spring holder, it is not necessary to consider the direction in which the return coil spring is fitted, so that the assembly of the recording head is improved.

  In the first and second embodiments, a felt impregnated with oil may be sandwiched between one end of the return coil spring and the recording lever.

  In the first and second embodiments, the case where the coil wire is wound in two layers at one end of the return coil spring has been described. However, the coil wire is wound in three or more layers at one end of the return coil spring. May be.

  In the first and second embodiments described above, the impact head for projecting the recording wire attached to the tip of the recording lever as the recording head onto the sheet has been described. However, the present invention is not limited to this, and the tip of the recording lever or The present invention can also be applied to an impact head in which a recording pin attached to the tip of a recording lever protrudes from a sheet.

1 is a perspective view showing a printer main body of a printer to which a first embodiment of a recording apparatus according to the present invention is applied. FIG. 2 is a side sectional view showing the printer main body of FIG. 1. It is a perspective view which shows a recording head. FIG. 4 is a cross-sectional view of the recording head taken along line IV-IV in FIG. 3. FIG. 6 is an explanatory view of a main part showing the vicinity of a return coil spring of a recording head. It is a perspective view which shows a return coil spring. It is a fragmentary sectional view showing a return coil spring. It is principal part explanatory drawing which shows the return coil spring vicinity of the recording head in 2nd Embodiment. It is a perspective view which shows a return coil spring.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Printer (recording apparatus), 18 ... Recording head, 19 ... Carriage, 21 ... Platen, 31 ... Ink ribbon, 35 ... Recording wire, 47 ... Recording lever, 49, 149 ... Spring holder, 61, 161 ... Return coil Spring, 61A, 161A ... one end (end), 62, 162 ... hole, 63 ... slit, 64, 164 ... oil reservoir.

Claims (8)

In a recording head comprising a recording lever and having a return coil spring whose end is in contact with the recording lever and returns the recording lever,
The recording head, wherein the end portion of the return coil spring is formed by winding a coil wire in a plurality of layers in a coil radial direction.   The recording head according to claim 1, wherein coil wires wound around the plurality of layers are brought into close contact with each other, and an oil reservoir is formed between the coil wires.   The recording head according to claim 1, wherein a coil wire is wound externally and / or internally at the end of the return coil spring. A spring holder having a hole into which the return coil spring is fitted;
A slit is provided at the opening end of the hole of this spring holder,
4. The recording head according to claim 1, wherein the recording lever contacts the end of the return coil spring through the slit. 5. In a recording apparatus in which a recording head mounted on a carriage includes a recording lever and records an image on a sheet conveyed on a platen by the recording lever.
The recording head includes a return coil spring whose end is in contact with the recording lever and returns the recording lever;
The recording device according to claim 1, wherein the end of the return coil spring is formed by winding a coil wire in a plurality of layers in a coil radial direction.   6. The recording apparatus according to claim 5, wherein coil wires wound around the plurality of layers are brought into close contact with each other, and an oil reservoir is formed between the coil wires.   The recording apparatus according to claim 5 or 6, wherein a coil wire is wound externally and / or internally at the end of the return coil spring. The recording head includes a spring holder in which a hole into which the return coil spring is fitted is formed,
A slit is provided at the opening end of the hole of this spring holder,
The recording apparatus according to claim 5, wherein the recording lever is in contact with the end portion of the return coil spring through the slit.

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