JP4438531B2 - Inkjet printer device - Google Patents

Description

  The present invention relates to an ink jet printer apparatus, and more particularly to an ink jet printer apparatus having a carrier frame.

  Among printer apparatuses, there is an ink jet printer apparatus that records an image by ejecting predetermined ink from a head toward a sheet while scanning in a direction intersecting with a sheet conveyance direction. In order to scan the head, the head is mounted on a carrier that reciprocates in a direction that intersects the paper conveyance direction. The carrier is supported by a carrier frame. In order to reduce the size of the printer device and reduce the number of parts, the carrier frame has also been equipped with a motor that provides a driving force for conveying paper and a gear that transmits the driving force.

  As an example of such a carrier frame, a carrier frame applied to the ink jet printer apparatus described in Patent Document 1 will be described. As shown in FIG. 6, the carrier frame 102 includes a main plate portion 103, a bent upper surface portion 105 and a bent side surface portion 104 that are bent with respect to the main plate portion 103, respectively. The carrier frame 102 holds a motor, gears (none of which are shown), and the like.

  The bent upper surface portion 105 and the bent side surface portion 104 are fixed to each other by caulking. That is, as shown in FIG. 7, a protruding portion 105a is provided at the end of the bent upper surface portion 105, while an opening 104a through which the protruding portion 105a is inserted is provided in the bent side surface portion 104. After the protrusion 105a is inserted through the opening 104a, the protrusion 105a is caulked.

Thus, the rigidity of the carrier frame 102 is ensured by fixing the bent upper surface portion 105 and the bent side surface portion 104, which are bent with respect to the main plate portion 103, respectively.
JP 2002-192788 A

  However, the conventional ink jet printer apparatus has the following problems. As described above, in order to fix the bent upper surface portion 105 and the bent side surface portion 104 by caulking, a step for caulking is required separately. Further, since the protruding portion 105a provided on the bent upper surface portion 105 is inserted into the opening portion 104a provided on the bent side surface portion 104, there is a problem that positional accuracy is required and assembly workability is poor.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an ink jet printer apparatus including a carrier frame capable of easily ensuring rigidity.

  The ink jet printer apparatus according to the present invention includes a conveying roller for feeding paper, a gear, a motor, and a carrier frame. The conveying roller is mounted on a predetermined shaft portion. The gear transmits a rotational driving force to the conveying roller. The motor applies a rotational driving force to the conveying roller. The carrier frame holds conveyance rollers, gears, and a motor. The carrier frame has a main plate portion, a bending side plate portion, and a bending upper plate portion. The main plate portion extends along the shaft portion of the conveying roller. The bending side plate portion is bent from both axial end portions of the main plate portion toward the conveying roller, and supports the conveying roller shaft portion, the gear, and the motor. The upper bending plate portion is bent so as to contact the upper end portion of the bending side plate portion from the upper end portion of the main plate portion toward the conveying roller. The bending side plate portion includes a groove portion having a predetermined length provided along the upper end. The bent upper plate portion is provided on the upper plate main body portion extending along the axial direction, the fitting portions provided at both axial end portions of the upper plate main body portion and being fitted into the groove portions, the fitting portion being provided in the groove portion. A wide portion having a width longer than a predetermined length for sandwiching the upper end portion of the bending side plate portion between the upper plate main body portion and the bending side plate portion while preventing the bending side plate portion from being bent in the axial direction is provided.

  According to this configuration, by bending the bending upper plate portion, the fitting portion of the bending upper plate portion is fitted into the groove portion provided at the upper end of the bending side plate portion. Accordingly, the upper end portion of the bending side plate portion is sandwiched between the upper plate main body portion and the wide portion of the bending upper plate portion. As a result, the bending of the bending side plate portion in the axial direction is prevented, and the rigidity of the carrier frame can be easily increased. Moreover, since the fitting portion is fitted into the groove portion by bending the upper bending plate portion, the assembly can be performed relatively easily as compared with the conventional case.

Another ink jet printer apparatus according to the present invention is an ink jet printer apparatus having a carrier frame that holds a conveyance unit for paper feeding. The carrier frame has a main plate portion extending in one direction, a first bending side plate portion, and a second bending side plate portion. The first bending side plate portion and the second bending side plate portion each have a first end portion and a second end portion that are bent to one side with respect to the main plate portion and contact each other. The first bending side plate portion is a predetermined end for fitting the second end portion of the second bending side plate portion formed along the first end portion at the first end portion contacting the second bending side plate portion. It is provided with a groove part of depth . A sandwiching portion is provided for sandwiching the first end of the first bending side plate in a state where the second end of the second bending side plate is fitted into the groove. The second bent side plate portion includes a side plate main body portion, a fitting portion having a predetermined width and fitted in the groove portion, and a wide portion having a width wider than the predetermined width. The sandwiching portion is configured to sandwich the first end portion of the first bending side plate portion between the side plate body portion and the wide portion located in the thickness direction of the first bending side plate portion in a state where the fitting portion is fitted in the groove portion. .

According to this configuration, in the state where the second bending side plate portion is bent and the fitting portion of the second bending side plate portion is fitted in the groove portion formed in the first end portion of the first bending side plate portion. The first end portion of the side plate portion is sandwiched between the side plate main body portion and the wide portion located in the thickness direction of the first bent side plate portion. As a result, the bending of the first bending side plate portion is prevented and the rigidity of the carrier frame can be easily increased. Moreover, since the first bending side plate portion is sandwiched by bending the second bending side plate portion, the assembly can be performed relatively easily as compared with the conventional case.

  In order to increase the rigidity of the carrier frame more firmly, it is preferable that the sandwiching portions are formed on both ends of the main plate portion in one direction.

  Further, in order to prevent the first end portion of the first bending side plate portion from protruding from the second side plate portion, the groove portion is preferably formed to a depth corresponding to the thickness of the second bending side plate portion. .

  An ink jet printer apparatus according to an embodiment of the present invention will be described. As shown in FIG. 1, in the ink jet printer apparatus, a predetermined roller 8 is mounted with a transport roller 6 for feeding paper. A gear 10 for transmitting a rotational driving force to the conveying roller 6 is attached to the shaft portion 8. The shaft portion 8 and the gear 10 are held by the carrier frame 2. The carrier frame 2 also holds a motor 12 that applies a rotational driving force to the conveying roller 6.

  The carrier frame 2 includes a main plate portion 3, a bending side plate portion 4, and a bending upper plate portion 5. The main plate portion 3 extends in one direction along the shaft portion 8. The bending side plate portion 4 is bent toward the conveyance roller 6 with respect to the main plate portion 3 to support the shaft portion 8, the gear 10, and the motor 12 of the conveyance roller 6. The upper bending plate portion 5 is bent with respect to the main plate portion 3 so as to contact the upper end portion of the bending side plate portion 4 toward the conveying roller 6 in the same manner as the bending side plate portion.

As shown in FIG. 2, the bent plate portion 45, along the upper end groove 4a having a predetermined length L ₁ and depth D are formed. On the other hand, the bent upper plate portion 5 has an upper plate main body portion 5a extending in one direction along the shaft portion. Its axial ends of the upper plate body portion 5a is fitted portions 5c of width L ₂ which is fitted into the groove portion 4a. The width L ₂ is substantially the same length as the groove width L ₁ . Further, the axial end portion of the fitting portion 5c, the wide portion 5b is provided with a longer width than the length width L ₁ of the groove 4a. By fitting the fitting portion 5c into the groove portion 4a, the upper end portion of the bending side plate portion 4 is sandwiched between the upper plate main body portion 5a and the wide portion 5b.

  Next, a procedure for assembling such a carrier frame 2 will be briefly described. First, a plate-like frame member in which portions corresponding to the main plate portion 3, the bending side plate portion 4, and the bending upper plate portion 5 are cut is produced. The portion corresponding to the bending side plate portion is bent substantially perpendicular to the portion corresponding to the main plate portion, and the shaft portion 8 and the motor 12 are attached. Next, as shown in FIG. 3, the portion corresponding to the bending upper plate portion is bent so as to contact the upper end portion of the bending side plate portion 4 as indicated by an arrow.

  That is, with respect to the portion corresponding to the main plate portion, the portion corresponding to the bending upper plate portion and the portion corresponding to the bending side plate portion are bent to the same side, and the upper end portion of the bending side plate portion and the axis of the bending upper plate portion are The end located in the direction orthogonal to the direction comes into contact. By bending the portion corresponding to the upper bending plate portion, as shown in FIG. 4, the fitting portion 5c corresponding to the upper bending plate portion is fitted into the groove portion 4a. The carrier frame 2 is assembled as described above.

  In the ink jet printer apparatus provided with the carrier frame described above, the fitting portion 5 c of the bending upper plate portion 5 is fitted into the groove portion 4 a provided at the upper end of the bending side plate portion 4. Thereby, as shown in FIG. 5, the upper end portion of the bending side plate portion 4 is sandwiched between the upper plate body portion 5 a and the wide portion 5 b of the bending upper plate portion 5. As a result, the bending of the bending side plate portion 4 in the axial direction (arrow 21) is prevented, and the rigidity of the carrier frame can be easily increased.

  In addition, since the fitting portion 5c is fitted into the groove portion 4a by bending the bending upper plate portion 5, high positional accuracy is not required as much as caulking in the conventional ink jet printer apparatus, and assembly can be performed relatively easily.

  Further, the depth D of the groove 4 a formed in the bent side surface portion 4 may be formed to a depth corresponding to the thickness of the bent upper surface portion 5. By doing so, the upper end part of the bending side board part 4 can be made into the substantially same position as the upper board main-body part 5a, without projecting on the upper board main-body part 5a of the bending upper surface part 5. FIG.

  The embodiment disclosed this time is illustrative in all points and is not restrictive. The present invention is defined by the terms of the claims, rather than the scope described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a fragmentary perspective view which shows the principal part of the inkjet printer apparatus which concerns on embodiment of this invention. FIG. 2 is a partial exploded perspective view showing a structure of a bending upper plate portion and a bending side plate portion shown in FIG. 1 in the same embodiment. FIG. 6 is a partial perspective view showing one step of a carrier frame assembling procedure in the same embodiment. FIG. 4 is a partial perspective view showing a process performed after the process shown in FIG. 3 in the same embodiment. In the same embodiment, it is a fragmentary top view which shows a mode that a bending upper board part pinches | interposes a bending side board part. It is a perspective view which shows the carrier frame in the conventional inkjet printer apparatus. FIG. 7 is a partially enlarged perspective view showing a caulking portion in the carrier frame shown in FIG. 6.

Explanation of symbols

  2 Carrier frame, 3 main plate portion, 4 bending side plate portion, 5 bent upper plate portion, 5a upper plate main body portion, 5b wide portion, 5c fitting portion, 6 transport roller, 8 shaft portion, 10 gear, 12 motor.

Claims (4)

A transport roller for paper feeding mounted on a predetermined shaft portion;
A gear for transmitting a rotational driving force to the conveying roller;
A motor for applying a rotational driving force to the conveying roller;
A carrier frame for holding the transfer roller, the gear and the motor;
The carrier frame is
A main plate portion extending along the shaft portion of the conveying roller;
A bent side plate portion that is bent from both axial end portions of the main plate portion toward the conveying roller, and supports the shaft portion of the conveying roller, the gear, and the motor;
Bending upper plate portion bent so as to contact the upper end portion of the bending side plate portion from the upper end portion of the main plate portion toward the conveying roller,
Have
The bending side plate portion includes a groove portion having a predetermined length provided along the upper end,
The bent upper plate portion is
An upper plate main body extending along the axial direction;
A fitting portion that is provided at both axial ends of the upper plate main body portion and is fitted into the groove portion;
An upper end portion of the bending side plate portion is sandwiched between the upper plate main body portion and the bending side plate portion to prevent the bending side plate portion from being bent in the axial direction with the fitting portion being fitted in the groove portion. An ink jet printer apparatus comprising: a wide portion having a width longer than the predetermined length. An ink jet printer apparatus having a carrier frame that holds a conveyance unit for paper feeding,
The carrier frame is
A main plate extending in one direction;
A first bent side plate portion and a second bent side plate portion respectively bent to one side with respect to the main plate portion and having a first end portion and a second end portion that are in contact with each other;
Have
The first bending side plate portion is fitted with the second end portion of the second bending side plate portion formed along the first end portion at the first end portion contacting the second bending side plate portion. A groove portion having a predetermined depth for insertion,
A clamping portion for sandwiching the first end portion of the first bending side plate portion in a state where the second end portion of the second bending side plate portion is fitted in the groove portion ;
The second bending side plate portion is
The side plate body,
A fitting portion fitted into the groove portion with a predetermined width;
A wide portion having a width wider than the predetermined width;
Including
The clamping portion includes the first end of the first bent side plate portion at the side plate main body portion and the wide portion located in the thickness direction of the first bent side plate portion in a state where the fitting portion is fitted in the groove portion. Inkjet printer device configured to sandwich the portion . The ink jet printer apparatus according to claim 2, wherein the sandwiching portions are formed on both ends of the main plate portion in one direction . 4. The ink jet printer apparatus according to claim 2 , wherein the groove portion is formed to a depth corresponding to a thickness of the second bending side plate portion as the predetermined depth . 5.

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