JP2001277648A - Carriage for recorder, and recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent a head cable connected to a recording head from being damaged. SOLUTION: There is disclosed a carriage 19 of a printer that has a recording head 18 being mounted thereon and having the head cable 35 connected thereto and holds the head cable 35. A tip section 42B of an operational section 42 on a holding piece 37 having a flexibility is disposed to be contacted to the head cable 35 to hold the head cable 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a carriage and a recording apparatus of a recording apparatus in which a recording head having a recording wire is mounted, and the recording head is connected to the head wire.

[0002]

2. Description of the Related Art In a printing apparatus, as shown in FIG. 8, while a carriage 2 on which a printing head 1 is mounted is moved along a platen 6, a large number of printing wires of the printing head 1 are passed through an ink ribbon. There is a dot impact printer which strikes a sheet located on the front peripheral surface of the platen 6 and records and writes on the sheet.

In such a printer, recording / writing information relating to a recording operation of a recording wire is transmitted to the recording head 1 via a head cable 3 connected to the recording head 1. The head cable 3 is held by the carriage 2 while being locked by a mounting portion 4 and a protrusion 5 provided on the carriage 2.

[0004]

However, the head cable 3 attached to the carriage 2 as described above.
In this case, stress concentration occurs in the mounting portion 4 and the protrusion 5, particularly in the vicinity of the protrusion 5, and the head cable 3 may be damaged at the portion where the stress concentration occurs, and may be broken in case of emergency. .

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and has as its object to provide a carriage and a recording apparatus of a recording apparatus that can reliably prevent damage to a head cable connected to a recording head.

[0006]

According to a first aspect of the present invention, a recording head to which a head cable is connected is mounted,
In a carriage of a recording apparatus for holding the head cable, a holding member having flexibility or elasticity is provided so as to be able to contact the head cable, and is configured to hold the head cable. It is.

According to a second aspect of the present invention, in the first aspect of the present invention, the holding member is a flexible thin plate-shaped holding piece.

According to a third aspect of the present invention, in the first aspect of the invention, the holding member is a spring having elasticity.

According to a fourth aspect of the present invention, a recording head having a large number of recording wires is mounted on a carriage traveling along a platen, and a head cable held by the carriage is connected to the recording head. In a recording apparatus that records an image on a sheet conveyed between the platen and the recording head by projecting the recording wire, the carriage has a flexible or elastic holding member. The head cable is installed so as to be capable of contacting the head cable and holds the head cable.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the holding member is a holding piece on a flexible thin plate.

According to a sixth aspect of the present invention, in the fourth aspect of the invention, the holding member is a spring having elasticity.

The first to sixth aspects of the present invention have the following effects.

A holding member having flexibility or elasticity is provided on the carriage so as to be in contact with a head cable connected to the recording head, and is configured to hold the head cable. Of the head cable in the vicinity of the contact portion with the holding member can be dispersed and reduced. As a result, damage to the head cable due to stress concentration can be reliably prevented.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a printer main body of a dot impact printer to which an 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.

The printer 10 as a recording apparatus shown in these figures hits a large number of recording wires (not shown) of a recording head on a sheet S via an ink ribbon 31 (FIG. 2), thereby recording dots. Is a dot impact printer that prints an image that includes a. Here, the sheet S is not only plain paper such as cut sheet paper or continuous paper, but also OHP
(Overhead Project) Sheets, coated paper, films, etc.

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

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

As shown in FIG. 2, the base frame 14 and the seat guide frame 15 are arranged substantially in parallel, and the left side frame 16 and the right side frame 17 are provided at both ends of the base frame 14 and the sheet guide frame 15, respectively.
Are respectively erected and fixed. As shown in FIG. 1, a carriage guide shaft 24 is hung and pivotally supported between the left side frame 16 and the right side frame 17, and a platen 21 is hung and rotatably arranged. Has been established. The seat guide 22 is provided on the left side frame 16.
And the right side frame 17, and is fitted and fixed to the seat guide frame 15. Also, the rear portions of the left side frame 16 and the right side frame 17,
The push tractor unit 1 is provided on each upper part.
2. A tractor unit mounting portion and a discharging unit mounting portion (not shown) to which the discharging unit 13 can be mounted are provided.

The push tractor unit 12 shown in FIG.
Sends out the continuous paper as the sheet S to the sheet transport mechanism 23, and the sheet supply guide 34 supplies the cut sheet as the sheet S to the sheet supply mechanism 23 one by one. The discharge unit 13 pulls out continuous paper or cut sheet 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
By the action of the pins 27 of the tractor belt 26, the continuous paper is guided by the sheet guide 22 of the sheet transport mechanism 23, and passes through a sheet transport path 28 formed between the sheet guide 22 and the platen 21. And is fed in the direction of arrow α. When the push tractor unit 12 is not operating, cut sheets can be supplied one by one from the sheet supply guide 34 to the platen 21 via the sheet conveyance path 28. In addition, due to the rotation of the discharge roller 29 of the discharge unit 13, as described later, the continuous paper or cut sheet on which characters and the like are recorded by the recording head 18 is pulled out from the platen 21 of the sheet transport mechanism 23 in the arrow β direction. . Thereby, the continuous paper or cut sheet is conveyed in the sub-scanning direction orthogonal to the main scanning direction of the carriage 19 described later.

The carriage 19 shown in FIG. 1 is slidably inserted into a carriage guide shaft 24 and has a recording head 18 mounted thereon. Since the carriage guide shaft 24 is arranged in parallel with the platen 21, the carriage 19
Are the platen 21 and the carriage guide shaft 24
Are provided so as to be able to move (run) in the main scanning direction which coincides with the axial direction.

The carriage 19 is guided by a carriage guide shaft 24 via a timing belt 30 (FIG. 2) by forward or reverse rotation of a carriage drive motor (not shown), and travels leftward or rightward in FIG. 1 in the main scanning direction. You.

The recording head 18 has a large number of recording wires (not shown), and an ink ribbon 31 is located forward of the recording wires in the projecting direction. While traveling in the main scanning direction together with the carriage 19, the recording head 18 projects a recording wire to strike the ink ribbon 31, and a sheet S (continuous paper or continuous paper) that contacts the ink on the ink ribbon 31 with the front peripheral surface of the platen 21. An image including characters is recorded on the sheet S by attaching the sheet S to a sheet.

The recording operation by the recording head 18 is such that one line of recording is performed by the recording wire of the recording head 18 while the carriage 19 travels leftward or rightward in the main scanning direction, and every time this one line of recording is performed. When the sheet S is continuous paper, the platen 2 of the sheet transport mechanism 23 is used.
1. Push tractor unit 12 and discharge unit 1
3, if the sheet S is a cut sheet, the platen 21, the pinch roller 25, and the discharge unit 13 of the sheet conveying mechanism unit 23 convey the sheet S by a predetermined amount (normally, the space between lines). The operation is performed by repeating the operation.

Reference numeral 32 shown in FIG. 2 is formed between the base frame 14 and the sheet guide frame 15 so as to open therefrom.
A bottom sheet supply port for supplying the sheet S into the inside.

The drive control of the platen 21, the push tractor unit 12, and the ejection unit 13, the travel control of the carriage 19, and the control of the recording operation of the recording head 18 by the recording wire are performed by a control board 33 (FIG. 2). This control board 33
For example, it is arranged below the sheet guide frame 15 behind the printer main body 11.

As shown in FIG. 1, the recording write information relating to the recording operation of the recording wire in the recording head 18 includes:
From the control board 33 (FIG. 2) to the head cable 35 (FF
C) to the recording head 18. The head cable 35 is connected to the recording head 18 and fixed to the base frame 14 using a cable holder 36. As shown in FIG.
Is a carriage 1 using a holding piece 37 as a holding member.
9 is held.

The head cable 35 by the holding piece 37
Next, the holding structure will be described in detail.

As shown in FIGS. 4 and 5, the carriage 19 has a folded portion 40A of the head cable 35 folded to change the direction of the head cable 35 by 90 degrees.
Is formed at a position corresponding to. Further, a protrusion 39 is formed on the carriage 19 at a position corresponding to the extending portion 40B where the folded head cable 35 extends toward the base frame 14. The head cable 35 connected to the recording head 18 has the folded portion 40A locked to the mounting portion 38 and the extended portion 40B connected to the protrusion 3.
9 locked.

The holding piece 37 is shown in FIGS. 6A and 6B.
As shown in (1), the positioning section 41 and the operation section 42 are a thin plate-shaped member integrally formed, and are made of synthetic resin such as polyester, synthetic rubber, metal or the like. In the present embodiment, the holding piece 37 is a polyester film having a thickness of about 0.188 mm.

The holding piece 37 is provided with a positioning portion 41.
A slit 43 is provided between the carriage 19 and the operation unit 42, and when mounted on the carriage 19, the projection 39 of the carriage 19 is positioned in the slit 43 as shown in FIGS. When the holding piece 37 is mounted, the positioning portion 41
Is brought into contact with an alignment corner 44 formed near the projection 39 of the carriage 19, and the holding piece 37 is positioned.

After the head cable 35 is locked to the carriage 19 using the mounting portion 38 and the projection 39, the holding piece 37 is superimposed on the upper surface of the head cable 35, and the inclined portion 42A of the operating portion 42 is mounted. The operation unit 42 is mounted on the carriage 19 by being locked by the unit 38 and the distal end portion 42B of the operation unit 42 being locked by the projection 39.

When the holding piece 37 is mounted on the carriage 19, the inclined portion 42 A of the operating portion 42 contacts the upper surface of the folded portion 40 A of the head cable 35, and the operating portion 4
2 is the extension portion 4 of the head cable 35.
The head cable 35 is held in contact with the upper surface of the head cable 0B, that is, the head cable 35 is held between the carriage 19 and the head cable 35.

At this time, a force perpendicular to the upper surface of the head cable 35 (perpendicular to the plane of FIG. 4) acts from the extending portion 40B of the head cable 35 to the distal end portion 42B of the operating portion 42 of the holding piece 37. At this time, the distal end portion 42B is bent and deformed to absorb the above-mentioned force. As a result, the stress concentration generated in the vicinity of the projection 39 of the head cable 35 due to the above-mentioned force is dispersed and reduced due to the bending deformation of the distal end portion 42B of the operating portion 42 of the holding piece 37.

Therefore, according to the above embodiment, the following effects can be obtained.

The carriage 19 is provided with a flexible holding piece 37 and a head cable 3 connected to the recording head 18.
5, and is configured to hold the head cable 35, so that the deformation of the operating portion 42 of the holding piece 37, particularly the distal end portion 42 </ b> B,
The stress concentration generated in the head cable 35 in the vicinity of the contact portion between the operating portion 42 and the tip portion 42B can be dispersed and reduced. As a result, damage such as breakage of the head cable 35 due to stress concentration can be reliably prevented.

FIG. 7 is a perspective view showing a recording head, a carriage, a head cable and the like to which another embodiment of the recording apparatus according to the present invention is applied. In the other embodiments, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the carriage 47 according to the other embodiment, the head cable 35 is not held by the carriage 19 by using the holding piece 37, but is held by the carriage 19 by using a holding member and a leaf spring 45 as a spring body. You. That is, the leaf spring 45 is attached to the attachment arm 46 which is detachably attached to the carriage 19 in an upright state. The leaf spring 45 is elastically deformed in the attached state, and is configured to be able to contact the extending portion 40B of the head cable 35.

As a result, a vertical force is applied to the upper surface of the head cable 35 by the extending portion 40B of the head cable 35.
When it acts on the leaf spring 45 from above, the leaf spring 45 is elastically deformed and the above-mentioned force is absorbed. As a result, similarly to the first embodiment, the stress concentration generated in the vicinity of the protrusion 39 of the extending portion 40B of the head cable 35 due to the above-mentioned force is dispersed by the elastic deformation of the leaf spring 45. It has the same effect as.

Although the present invention has been described based on the above embodiment, the present invention is not limited to this.

[0042]

According to the carriage of the recording apparatus according to the first aspect of the present invention, the flexible or elastic holding member is installed so as to be able to contact the head cable connected to the recording head. Since the head cable is configured to be held, damage to the head cable can be reliably prevented.

According to the recording apparatus of the present invention, a recording head having a large number of recording wires is mounted on a carriage, a head cable is connected to the recording head, and a flexible cable is provided on the carriage. Since the holding member having the property or elasticity is arranged so as to be capable of contacting the head cable and configured to hold the head cable,
The head cable can be reliably prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a printer main body of a dot impact printer to which an 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;

FIG. 3 is a perspective view showing a carriage, a recording head, a head cable, and the like in FIG. 1;

FIG. 4 is a plan view showing a carriage, a recording head, a head cable, and the like in FIG. 3;

FIG. 5 is a perspective view showing a carriage and a recording head shown in FIG. 3 excluding a head cable and the like.

6A and 6B show the holding piece of FIG. 3, wherein FIG. 6A is a plan view and FIG.
Is a side view.

FIG. 7 is a perspective view showing a recording head, a carriage, a head cable, and the like to which another embodiment of the recording apparatus according to the invention is applied.

FIG. 8 is a plan view showing a recording head, a carriage, and a head cable in a conventional recording apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printer (recording apparatus) 18 Recording head 19 Carriage 21 Platen 35 Head cable 37 Holding piece (holding member) 38 Carriage mounting part 39 Carriage projection part 41 Holding piece positioning part 42 Holding piece operating part 42B Tip of operating part Part 45 leaf spring (holding member, spring body) 47 carriage S sheet

Claims (6)

[Claims] 1. A carriage of a recording apparatus which mounts a recording head to which a head cable is connected and holds the head cable, wherein a flexible or elastic holding member is installed so as to be able to contact the head cable. A carriage for the recording apparatus, the carriage being configured to hold the head cable. 2. The carriage according to claim 1, wherein the holding member is a flexible thin plate-shaped holding piece. 3. The carriage according to claim 1, wherein the holding member is a spring having elasticity. 4. A recording head having a plurality of recording wires is mounted on a carriage running along a platen,
A head cable held by the carriage is connected to the recording head, and the recording wire is protruded to record an image on a sheet conveyed between the platen and the recording head. A recording apparatus, wherein a holding member having flexibility or elasticity is provided on the carriage so as to be in contact with the head cable and holds the head cable. 5. The carriage according to claim 4, wherein the holding member is a holding piece on a flexible thin plate. 6. The carriage according to claim 4, wherein the holding member is a spring having elasticity.