JP4085569B2 - Assembly structure of flexible bush and recording apparatus provided with this assembly structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flexible bushing assembly structure in which a flexible bushing is assembled to an opening edge of an opening, and a recording apparatus including the assembly structure in a frame of a recording apparatus main body.
[0002]
[Prior art]
Recording for recording an image on a sheet conveyed between the platen and the recording head by a recording wire of a recording head mounted on a carriage capable of traveling along the platen projecting toward the platen Some apparatuses include an assembly structure of a flexible bush on a frame of a recording apparatus main body.
[0003]
FIG. 7 shows an assembly structure of a flexible bush 102 applied to the side frame 101 of the recording apparatus main body. That is, a flexible flat cable (not shown) for transmitting a recording signal is connected to the recording head (not shown), and the flexible flat cable is inserted into the opening 103 of the side frame 101. In order to prevent the flexible flat cable from being damaged by the opening edge 104 of the opening 103, a resin-made flexible bush 102 is fitted and assembled to the opening edge 104.
[0004]
[Problems to be solved by the invention]
However, in recent years, the width of flexible flat cables tends to increase. For this reason, the opening 103 of the side frame 101 also needs to be formed in a wide shape corresponding to the flexible flat cable. However, if the opening 103 has a wide shape, the flexible bush 102 fitted to the opening edge 104 of the opening 103 and the component 105 installed adjacent to the opening 103 may interfere with each other. .
[0005]
In addition, when the flexible bushing 102 is fitted to the curved linear portion 104B of the opening edge 104 of the opening 103, the restoring force against bending deformation is large. Although the fitting force is strong, when the fitting is performed on the linear portion 104A of the opening edge 104, the restoring force hardly acts, so the fitting force on the linear portion 104A is weak.
[0006]
Therefore, in order to form the wide opening 103, the straight portion 104A of the opening edge 104 is formed at the end of the opening 103, and the flexible bush 102 is simply fitted to the straight portion 104A. There is a risk that the flexible bushing 102 will fall off if it is only allowed to do so.
[0007]
An object of the present invention is made in consideration of the above-mentioned circumstances, and an assembly structure of a flexible bushing capable of reliably assembling a flexible bushing to an opening edge of an opening portion without dropping off, Another object of the present invention is to provide a recording apparatus having this assembly structure.
[0008]
[Means for Solving the Problems]
In the first aspect of the present invention, an opening having an opening edge is formed in a plate-like body, and the opening edge has a shape that connects two opposing straight lines using a line segment including a curved line, In the assembly structure of the flexible bushing in which the flexible bushing is fitted and assembled to the opening edge, the flexible bushing is fitted with the linear part of the opening edge at one end side and the other end side. At least one of the portion and the vicinity thereof is fitted into the curved linear portion of the opening edge, and the tip of the other end side portion is configured to press the one end side portion.
[0009]
In the invention according to claim 2, an opening having an opening edge is formed in a plate-like body, and the opening edge has a shape for connecting opposing two straight lines using a line segment including a curved line, In the assembly structure of the flexible bushing in which the flexible bushing is fitted and assembled to the opening edge, one end side of the flexible bushing is fitted to the linear part of the opening edge, and this one end side The tip of the part is inserted into and fitted into the narrow part formed at the opening edge.
[0010]
According to a third aspect of the present invention, there is provided a recording apparatus main body in which a recording head having a plurality of recording wires is mounted on a carriage that can travel along the platen, and the recording wire projects toward the platen. Thus, an image is recorded on a sheet conveyed between the recording head and the platen, and an opening having an opening edge is formed in the frame of the recording apparatus main body. In the recording apparatus in which a straight line is connected by using a line segment including a curved line, and the flexible bush is fitted to the opening edge and assembled, the flexible bush has one end side portion of the opening. Fitted to the linear portion of the edge, at least one of the other end side portion and the vicinity thereof is fitted to the curved linear portion of the opening edge, and the tip of the other end side portion presses the one end side portion. Specially configured It is an.
[0011]
According to a fourth aspect of the present invention, there is provided a recording apparatus main body in which a recording head having a plurality of recording wires is mounted on a carriage that can travel along the platen, and the recording wire projects toward the platen. Thus, an image is recorded on a sheet conveyed between the recording head and the platen, and an opening having an opening edge is formed in the frame of the recording apparatus main body. In the recording apparatus in which a straight line is connected by using a line segment including a curved line, and the flexible bush is fitted to the opening edge and assembled, the flexible bush has one end side portion of the opening. It is fitted to the linear part of the edge, and the tip of this one end side part is inserted into the narrow part formed in the opening edge and fitted.
[0012]
The invention according to claim 1 or 3 has the following effects.
[0013]
In general, when a flexible bush is fitted to a curved linear portion of the opening edge of the opening, since the restoring force against bending deformation is large, the fitting force to the opening edge is strong. In the case of being fitted to a linear portion, the restoring force hardly acts, so the fitting force to the opening edge is weak.
[0014]
In this invention, the flexible bushing is fitted to the linear portion of the opening edge at one end side, and at least one of the other end side portion and the vicinity thereof is fitted to the curved linear portion of the opening edge. Since the tip of the end side portion is configured to press the one end side portion, the other end side portion having a strong fitting force to the opening edge of the flexible bush is one end having a weak fitting force to the opening edge. It will support the sides well. For this reason, it is possible to prevent the one end side portion of the flexible bushing fitted to the linear portion of the opening edge from falling off from the opening edge, so that the flexible bushing is surely prevented from dropping off at the opening edge of the opening portion. Can be assembled.
[0015]
Moreover, since the falling off of the one end side portion of the flexible bush fitted to the linear portion of the opening edge is prevented, the linear portion is used as a part of the opening edge to which the flexible bush is fitted. Can form an acute-angle shaped portion. By forming this acute-angle shaped part, an opening with a wide effective width can be formed, and interference between a flexible bush fitted to the opening edge of the opening and a component attached adjacent to the opening is prevented. it can.
[0016]
The invention according to claim 2 or 4 has the following effects.
[0017]
One end of the flexible bush fitted to the linear part of the opening edge of the opening has a weak fitting force, but the tip of this one end is inserted into the narrow part formed on the opening edge. As a result, the one end side portion of the flexible bush is favorably supported by the opening edge, and the drop-out is prevented. For this reason, it can assemble | attach reliably so that a flexible bush may not drop | omit to the opening edge of an opening part.
[0018]
Moreover, since the falling off of the one end side portion of the flexible bush fitted to the linear portion of the opening edge is prevented, the linear portion is used as a part of the opening edge to which the flexible bush is fitted. To form an acute-angle shaped portion. By forming this acute-angle shaped part, an opening with a wide effective width can be formed, and interference between a flexible bush fitted to the opening edge of the opening and a component attached adjacent to the opening is prevented. it can.
[0019]
Further, the flexible bushing is supported well by being inserted and fitted into the narrowed portion formed at the opening edge at the end of the one end side portion. In the operation of fitting to the edge, by performing the above-described insertion fitting in the first step of the operation, the flexible bushing can be prevented from moving carelessly, and this state can be maintained. Therefore, after that, the work of fitting the other part of the flexible bush to the opening edge becomes easy, and the workability can be improved.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
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 of the printer main body of FIG.
[0022]
The printer 10 as a recording apparatus shown in these drawings prints an image including characters by hitting a number of recording wires of a recording head against a sheet via an ink ribbon (both not shown) to record dots. Dot impact printer. The printer 10 includes a printer main body 11 as a recording apparatus main body, a push tractor unit 12 attached to the printer main body 11, an upper case (not shown) and a lower case 13 that cover the upper and lower sides of the printer main body 11, respectively, And a sheet supply guide 43 that is installed on the front side of the main body 11 and guides the cut sheet K.
[0023]
The sheet includes the cut sheet K cut to a predetermined length and a continuous sheet in which a plurality of sheets are connected. Examples of the cut sheet K include cut sheet paper, copy paper, and cut film, and examples of the continuous sheet include continuous paper.
[0024]
The printer main body 11 includes a base frame 14 as a main body frame, a main frame 15, a left side frame 16 and a right side frame 17, a recording head 18 and a carriage 19 as recording mechanisms, and a platen 20 as a sheet conveying mechanism. , A sheet guide 25, a first transport roller 21, a second transport roller 22, a third transport roller 23, and a fourth transport roller 24.
[0025]
A left side frame 16 and a right side frame 17 are erected and fixed at substantially both ends of the base frame 14 and the main frame 15. A lower carriage shaft 26 and an upper carriage shaft 27 are bridged between the left side frame 16 and the right side frame 17 at a predetermined distance in the vertical direction. Of these, the lower carriage shaft 26 is pivotally supported by the left side frame 16 and the right side frame 17. Further, a platen 20 is bridged between the left side frame 16 and the right side frame 17 and is rotatably disposed, and a seat guide 25 is fixedly disposed.
[0026]
The push tractor unit 12 shown in FIG. 2 supplies a continuous sheet (for example, continuous paper) to the sheet transport mechanism unit including the platen 20 and has a pair of left and right tractors 28. These tractors 28 include a tractor drive pulley (not shown) that is rotatably supported on the tractor drive shaft 29 and is slidable in the axial direction, and a tractor 28 that is rotatably supported on the tractor guide shaft 30 and slidable in the axial direction. A tractor belt 31 is wound around the tractor driven pulley (not shown) and a sheet pressing lid 32 is provided.
[0027]
The distance between the pair of tractors 28 can be adjusted according to the width dimension of the continuous sheet (continuous paper) to be conveyed. A plurality of pins 33 projecting from the entire outer periphery of the tractor belt 31 can be engaged with holes (not shown) drilled on both sides in the width direction of the continuous sheet.
[0028]
In the sheet transport mechanism including the platen 20, the first transport roller 21 and the second transport roller 22 are located on the front side of the printer main body 11, and the third transport roller 23 and the fourth transport roller 24 are connected to the printer main body. 11 is arranged on the rear side of each. Further, the first conveyance roller 21 and the second conveyance roller 22, and the third conveyance roller 23 and the fourth conveyance roller 24 are arranged in the vertical direction to make a pair.
[0029]
Among these, the first conveyance roller 21 and the third conveyance roller 23 are arranged below the sheet guide 25 together with the platen 20, and the second conveyance roller 22 and the fourth conveyance roller 24 are arranged above the sheet guide 25. The upper portions of the platen 20, the first conveyance roller 21, and the third conveyance roller 23 are in a state of protruding above the sheet guide 25. Further, a sheet holding plate 37 that holds a sheet with the sheet guide 25 is provided on the front side of the printer body 11 in the sheet guide 25.
[0030]
The platen 20, first transport roller 21, second transport roller 22, third transport roller 23, and fourth transport roller 24 are driven clockwise (CW) or counterclockwise (CCW) in FIG. Is driven to rotate. Similarly, the tractor belt 31 of the push tractor unit 12 is driven counterclockwise by the drive wheel train 34.
[0031]
The drive wheel train 34 shown in FIG. 1 is installed on one of the left side frame 16 and the right side frame 17, for example, the right side frame 17. The drive wheel train 34 includes a motor pinion 36 that is rotatably and integrally fixed to a drive shaft of a sheet supply motor 35 that can rotate forward or reverse. The driving force from the motor pinion 36 is wound around the platen 20, the first conveying roller 21, the second conveying roller 22, the third conveying roller 23, the fourth conveying roller 24, and the push tractor via a transmission mechanism and a gear mechanism. Transmission to the unit 12 is possible.
[0032]
As shown in FIG. 2, the cut sheet K such as cut sheet or copy paper is manually supplied from the front side of the printer main body 11, and then the clockwise rotation of the platen 20, the first conveyance roller 21, and the third conveyance roller 23. And the counterclockwise rotation of the second transport roller 22 and the fourth transport roller 24, the printer body 11 is transported in the direction of arrow A from the front to the rear, and the platen 20 and the first transport roller 21 are also transported. The third conveyance roller 23 is conveyed counterclockwise and the second conveyance roller 22 and the fourth conveyance roller 24 are rotated in the arrow B direction from the rear to the front of the printer body 11.
[0033]
On the other hand, a continuous sheet such as continuous paper is supplied in the direction of arrow B from the rear side of the printer main body 11 by the push tractor unit 12, and then the platen 20, the first transport roller 21, the second transport roller 22, and the third transport roller. 23 and the fourth conveying roller 24 are conveyed in the same direction (arrow B direction).
[0034]
As a result, the cut sheet K and the continuous sheet are conveyed in the sub-scanning direction orthogonal to the later-described main scanning direction of the carriage 19.
[0035]
As shown in FIG. 1, the carriage 19 is slidably inserted into the lower carriage shaft 26 and the upper carriage shaft 27 and has the recording head 18 mounted thereon. Since the lower carriage shaft 26 and the upper carriage shaft 27 are arranged in parallel with the platen 20, the carriage 19 travels in the main scanning direction that coincides with the axial directions of the platen 20, the lower carriage shaft 26 and the upper carriage shaft 27 ( Scanning) is possible.
[0036]
The carriage 19 is coupled to a timing belt 39 (FIG. 2) that is reciprocated by forward rotation or reverse rotation of a carriage drive motor 38. Accordingly, the carriage 19 is guided to the lower carriage shaft 26 and the upper carriage shaft 27 via the timing belt 39 by the forward or reverse rotation of the carriage drive motor 38, and is scanned leftward or rightward in FIG. 1 in the main scanning direction. The Here, the carriage drive motor 38 is configured by a stepping motor, for example, together with the sheet supply motor 35.
[0037]
As shown in FIG. 1, the carriage 19 is provided with a ribbon cassette mounting portion 40, and a ribbon cassette (both not shown) storing ink ribbons is mounted on the ribbon cassette mounting portion 40. The carriage 19 is further provided with a ribbon mask holder 41 for protecting the ink ribbon of the ribbon cassette from a sheet (cut sheet or continuous sheet) conveyed in contact with the upper peripheral surface of the platen 21. The ink ribbon in the ribbon cassette is movably provided in front of the recording wire of the recording head 18 by a ribbon driving shaft 42 installed in the ribbon cassette mounting portion 40.
[0038]
The recording head 18 includes a large number of recording wires (not shown), and the ink ribbon is positioned in front of the protruding direction of these recording wires as described above. While the recording head 18 is scanned in the main scanning direction together with the carriage 19, the recording wire protrudes and strikes the ink ribbon. The ink on the ink ribbon is placed between the platen 20 (FIG. 2) and the recording head 18. Attached to a sheet (cut sheet K or continuous sheet) conveyed on the sheet, an image including characters is recorded on the sheet.
[0039]
In the recording operation by the recording head 18, one line sentence is recorded by the recording wire of the recording head 18 while the carriage 19 is scanned leftward or rightward in the main scanning direction, and the sheet is recorded each time the one line sentence is recorded. Is a cut sheet K, the sheet transport mechanism (platen 20, first transport roller 21, second transport roller 22, third transport roller 23, and fourth transport roller 24), and the sheet is a continuous sheet In this case, the sheet conveying mechanism and the push tractor unit 12 convey the sheet by a predetermined length (for an interval between normal rows) and repeat these operations.
[0040]
As shown in FIG. 2, a control board 45 is disposed at the lower rear side of the printer body 11, and the control board 45 and the recording head 18 are connected by a flexible flat cable 46 (FIG. 4). A recording signal is transmitted from the control board 45 to the printer main body 11 via the flexible flat cable 46. A reference numeral 44 in FIG. 1 denotes a motor mounting bracket for installing and supporting the carriage drive motor 38.
[0041]
As shown in FIGS. 3 and 4, the flexible flat cable 46 is inserted into an opening 47 formed in the right side frame 17. The opening edge 48 of the opening 47 has a shape that connects two linear portions 49A and 49B that face each other in parallel using the curved linear portion 50, the curved linear portion 51, and the narrow portion 52. It is.
[0042]
The curved linear portion 51 is formed by a curved line having the same curvature radius. The curved linear portion 50 is formed by a curved line having a radius of curvature that gradually increases from the linear portion 49B toward the linear portion 49A. Further, the narrow portion 52 is continuous with the curved linear portion 50 and the linear portion 49A, and has a curved line with a very small radius of curvature compared to the curved linear portion 51, and a flexible bush 53 described later. Can be held.
[0043]
Here, in the opening edge 48, the angle α formed by the linear portion 49 </ b> A and the curved linear portion 50 is configured to be an acute angle, and an acute angle shaped portion 59 is formed at the opening edge 48. The opening 47 has the width W set to a dimension that allows the wide flexible flat cable 46 to be sufficiently inserted by forming the acute-angled portion 59. Moreover, even when the width W of the opening 47 is set to be large by forming the acute-angle shaped portion 59, the flexible bushing fitted into the adjacent other component 60 and the opening edge 48 as will be described later. 53 is configured not to interfere.
[0044]
As shown in FIG. 5, the flexible bushing 53 is fitted and assembled to the opening edge 48 of the opening 47 formed in this way. By attaching the flexible bushing 53 to the opening edge 48 of the opening 47, the flexible flat cable 46 inserted into the opening 47 is prevented from coming into direct contact with the opening edge 48. Wear damage due to the opening edge 48 is prevented.
[0045]
The flexible bushing 53 is made of, for example, resin. As shown in FIG. 6, a large number of rectangular protrusions 55 are integrally projected from one side surface of the flat elongated base part 54. 55 is arranged in two columns. The projections 55 in each of the columns arranged in a row sandwich the opening edge 48 of the opening 47 so that the flexible bushing 53 is fitted to the opening edge 48 of the opening 47. The flexible bushing 53 is configured to be able to bend and deform in the direction in which the protrusion 55 protrudes from the base portion 54 (the direction of arrow H in FIG. 6B).
[0046]
The flexible bushing 53 configured as described above has one end side portion 56 fitted to the curved linear portion 50 side of the linear portion 49A in the opening edge 48 of the opening portion 47, and this one end side portion. As the distance from 56 increases, the linear portion 49A is sequentially fitted to the curved linear portion 51 side, the curved linear portion 51, the curved linear portion 51 side of the linear portion 49B, and the curved linear portion 50 side of the linear portion 49B. The other end side portion 57 and the other end side portion vicinity 58 are fitted to the curved linear portion 50. At this time, the distal end 57 </ b> P of the other end side portion 57 of the flexible bush 53 is configured to press the one end side portion 56. Further, the distal end 56 </ b> P of the one end side portion 56 of the flexible bush 53 is inserted and fitted into the narrow portion 52 of the opening edge 48.
[0047]
As described above, the reason why the distal end 57P of the other end side portion 57 of the flexible bush 53 can press the one end side portion 56 is as follows. The one end side portion 56 that is fitted to the linear portion 49A of the opening edge 48 hardly receives a restoring force due to bending deformation and has a weak fitting force, and thus is easily dropped from the linear portion 49A. On the other hand, the other end side portion 57 and the other end side portion vicinity 58 fitted to the curved linear portion 50 of the opening edge 48 are bent and deformed by the curved linear portion 50 to increase the restoring force. The fitting force to the portion 50 is strong. For this reason, the front end 57P of the other end side portion 57 having a strong fitting force can press the one end side portion 56 to support the one end side portion 56.
[0048]
Further, as described above, the tip 56P of the one end side portion 56 of the flexible bush 53 is inserted into the narrowed portion 52 of the opening edge 48 to be fitted to the linear portion 49A of the opening edge 48. Since the fitting force of the one end side portion 56 is weak, in the work of fitting the flexible bush 53 to the opening edge 48, the flexible bush 53 is fixed to the opening edge 48 in the first step. This is for maintaining the state in which the side portion 56 is fitted to the linear portion 49A.
[0049]
In the work of fitting the flexible bush 53 to the opening edge 48 of the opening 47 in the right side frame 17 as described above and assembling, first, the distal end 56P of the one end side 56 of the flexible bush 53 is assembled. Is inserted into the narrow portion 52 of the opening edge 48 to fix the flexible bush 53 to the opening edge 48. Next, the one end side portion 56 of the flexible bush 53 is fitted into the linear portion 49A of the opening edge 48, and the flexible bush 53 is sequentially opened from the one end side portion 56 toward the other end side portion 57. 48. Finally, the other end side portion 57 and the other end side portion vicinity 58 of the flexible bushing 53 are fitted to the curved linear portion 50 of the opening edge 48, and the tip 57P of the other end side portion 57 is connected to the one end side portion 56. To complete the assembly of the flexible bushing 53.
[0050]
Therefore, according to the above embodiment, the following effects (1) to (4) are obtained.
[0051]
(1) When the flexible bush 53 is fitted to the curved linear portion 50 or the curved linear portion 51 of the opening edge 48 of the opening 47, the flexible bush 53 has a large restoring force against bending deformation, so When the fitting force to 48 is strong and the straight portion 49A or 49B of the opening edge 48 is fitted, the restoring force hardly acts so that the fitting force to the opening edge 48 is weak. In the above embodiment, the flexible bushing 53 has one end side portion 56 fitted into the linear portion 49 </ b> A of the opening edge 48, and the other end side portion 57 and the other end side portion vicinity 58 are curved lines of the opening edge 48. Since the distal end 57P of the other end side portion 57 is configured to press the one end side portion 56, the fitting force to the opening edge 48 of the flexible bush 53 is strong. The other end side portion 57 favorably supports the one end side portion 56 having a weak fitting force to the opening edge 48. For this reason, it is possible to prevent the one end side portion 56 of the flexible bushing 53 fitted to the linear portion 49 </ b> A of the opening edge 48 from falling off the opening edge 48, so that the flexible bushing is attached to the opening edge 48 of the opening portion 47. 53 can be securely assembled so as not to fall off.
[0052]
(2) The one end side portion 56 of the flexible bushing 53 fitted to the linear portion 49A of the opening edge 48 in the opening portion 47 has a weak fitting force, but the tip 56P of the one end side portion 56 is connected to the opening edge 48. Since the one end side portion 56 of the flexible bushing 53 is favorably supported by the opening edge 48, it is prevented from falling off. For this reason, the flexible bushing 53 can be securely assembled to the opening edge 48 of the opening 47 so as not to drop off.
[0053]
(3) As described in (1) and (2) above, the one end side portion 56 of the flexible bushing 53 fitted to the linear portion 49A of the opening edge 48 in the opening 47 is prevented from falling off. An acute-angled portion 59 can be formed on a part of the opening edge 48 to which the flexible bushing 53 is fitted using the linear portion 49A. By forming the acute-angle shaped portion 59, the opening 47 having a wide effective width can be formed, and the flexible bushing 53 fitted to the opening edge 48 of the opening 47 is attached adjacent to the opening 47. Interference with other components 60 can be prevented.
[0054]
(4) The flexible bushing 53 is favorably supported by the tip 56P of the one end side portion 56 being inserted into and fitted into the narrowed portion 52 formed on the opening edge 48. In the operation of fitting 53 to the opening edge 48 of the opening 47, the flexible bushing 53 can be prevented from inadvertently moving by performing the above-described insertion fitting in the first step of the operation. It can be fixed and this state can be maintained. Therefore, thereafter, the work of fitting the other part of the flexible bushing 53 to the opening edge 48 becomes easy, and the workability can be improved.
[0055]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0056]
For example, in the above embodiment, the tip 56P of the one end side portion 56 of the flexible bush 53 is the narrow portion 52 of the opening edge 48 in a state where the flexible bush 53 is fitted to the opening edge 48 of the opening 47. As described above, the tip 57P of the other end side portion 57 of the flexible bushing 53 presses the one end side portion 56, but the insertion fitting of the tip 56P and the pressing of the tip 57P are described. Any one of these may be implemented.
[0057]
Moreover, in the said embodiment, the curved line-shaped part 50 in the opening edge 48 of the opening part 47 is comprised by the curved line of a different curvature radius, and the other end side part 57 of the flexible bush 53 and the other end side part vicinity Although 58 has been described as being fitted to the curved linear portion 50, the curved linear portion 61 corresponding to the curved linear portion 50 is a straight portion 49B as shown by the two-dot chain line in FIG. The curved line 62 that is continuous to the narrow portion 52 and the straight line 63 that is continuous to the narrow portion 52 may be continuously formed. At this time, the other end side portion 57 of the flexible bush 53 is fitted to the straight line 63 of the curved linear portion 61, and the other end side portion vicinity 58 is fitted to the curved line 62 of the curved linear portion 61. In this case, since the fitting force when the other end side portion vicinity 58 is fitted to the curved line 62 is strong, the one end side portion 56 is favorably pressed by the tip 57P of the other end side portion 57.
[0058]
Further, instead of the curved linear portion 50 of the present embodiment, a curved linear portion 64 corresponding to the curved linear portion 50 is a straight line 65 that is continuous with the linear portion 49B, as shown by a broken line in FIG. And the curved line 66 continued to the narrow portion 52 may be configured to be continuous with each other. At this time, the other end side portion 57 of the flexible bush 53 is fitted to the curved line 66 of the curved linear portion 64, and the other end side portion vicinity 58 is fitted to the straight line 65 of the curved linear portion 64. Since the fitting force when the other end side portion 57 is fitted to the curved line 66 is strong, the one end side portion 56 is favorably pressed by the tip 57P of the other end side portion 57.
[0059]
Furthermore, in the above-described embodiment, the opening 47 is formed in the right side frame 17 and the flexible bush 53 is assembled to the opening edge 48 of the opening 47. However, other frames in the printer main body 11 are described. The present invention can also be applied to the case where the flexible bushing 53 is fitted and assembled to the opening edge of the opening formed on the left side frame 16 or the main frame 15 (for example).
[0060]
【The invention's effect】
According to the assembly structure of the flexible bushing according to the first aspect of the present invention, the opening having an opening edge is formed in the plate-like body, and the opening edge includes curved lines that are opposed to each other. In the flexible bushing assembly structure in which the flexible bushing is fitted and assembled to the opening edge, one end side of the flexible bushing is the opening edge. The other end side portion and at least one of the vicinity thereof are fitted to the curved linear portion of the opening edge, and the tip of the other end side portion presses the one end side portion. Since it was comprised, it can assemble | attach reliably so that a flexible bush may not drop | omit to the opening edge of an opening part.
[0061]
According to the recording apparatus of the third aspect of the present invention, the recording apparatus has a recording apparatus body on which a recording head having a plurality of recording wires is mounted on a carriage that can travel along the platen. An image is recorded on a sheet conveyed between the recording head and the platen by projecting toward the platen, and an opening having an opening edge is formed in the frame of the recording apparatus body. The edge has a shape that connects two opposing straight lines using a line segment including a curved line, and in the recording apparatus in which the flexible bush is fitted and assembled to the opening edge, the flexible bush is One end side portion is fitted to the linear portion of the opening edge, at least one of the other end side portion and the vicinity thereof is fitted to the curved linear portion of the opening edge, and the tip of the other end side portion is I'll press one side From what has been configured, it can be assembled securely so as not to fall off the flexible bushes on the opening edge of the opening.
[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 invention is applied.
FIG. 2 is a side sectional view showing the printer main body of FIG.
3 is a perspective view showing the side frame and the like of FIG. 1. FIG.
4 is a front view showing a part of the right side frame of FIG. 3; FIG.
5 is a front view showing a state in which a flexible bush is attached to the opening of the right side frame of FIG. 4;
6A and 6B show the flexible bushing of FIG. 5, where FIG. 6A is a perspective view and FIG. 6B is a side view.
FIG. 7 is a front view showing a right side frame together with a flexible bush in a conventional recording apparatus.
[Explanation of symbols]
10 Printer (recording device)
11 Printer body (recording device body)
17 Right side frame
18 Recording head
19 Carriage
20 platen
47 opening
48 Open edge
49A, 49B Linear part of the opening edge
50, 51 Curved linear part of the opening edge
52 Narrow part of opening edge
53 Flexible Bush
56 One end side of flexible bush
57 Other end side of flexible bush
56P Tip of one end side
57P Tip of the other end side
58 Near the other end of the flexible bushing
59 Sharp corner
K cut sheet

Claims (4)

An opening having an opening edge is formed in the plate-like body, and the opening edge has a shape for connecting two opposing straight lines using a line segment including a curved line, and a flexible bush is attached to the opening edge. In the assembly structure of the flexible bushing to be fitted and assembled, the flexible bushing has one end side portion fitted to the linear portion of the opening edge, and at least one of the other end side portion and the vicinity thereof is the above-mentioned Fitted to the curved linear part of the opening edge,
An assembly structure of a flexible bush, wherein the tip of the other end side portion is configured to press the one end side portion. An opening having an opening edge is formed in the plate-like body, and the opening edge has a shape for connecting two opposing straight lines using a line segment including a curved line, and a flexible bush is attached to the opening edge. In the assembly structure of the flexible bushing to be fitted and assembled, the flexible bushing is fitted at one end side to the linear portion of the opening edge, and the tip of the one end side is attached to the opening edge. A flexible bushing assembly structure, wherein the flexible bushing is inserted into and fitted into a narrow portion formed. A carriage capable of traveling along the platen, and having a recording apparatus main body on which a recording head having a plurality of recording wires is mounted, the recording wire projecting toward the platen, and the recording head and the platen Record the image on the sheet conveyed during
An opening having an opening edge is formed in the frame of the recording apparatus main body, and the opening edge has a shape that connects two opposing straight lines using a line segment including a curved line. In a recording apparatus in which a flexible bush is fitted and assembled,
The flexible bush has one end side fitted to the linear portion of the opening edge, and the other end side and at least one of the vicinity thereof is fitted to the curved linear portion of the opening edge,
A recording apparatus, wherein a tip of the other end side portion is configured to press the one end side portion. A carriage capable of traveling along the platen, and having a recording apparatus main body on which a recording head having a plurality of recording wires is mounted, the recording wire projecting toward the platen, and the recording head and the platen Record the image on the sheet conveyed during
An opening having an opening edge is formed in the frame of the recording apparatus main body, and the opening edge has a shape that connects two opposing straight lines using a line segment including a curved line. In a recording apparatus in which a flexible bush is fitted and assembled,
The flexible bush has one end side portion fitted into the linear portion of the opening edge, and the tip end of the one end side portion is inserted into a narrow portion formed at the opening edge and fitted. A recording apparatus.

Images