JPS6233661A - Printer - Google Patents

Abstract

PURPOSE:To mount and dismantle both connectors smoothly and positively by making a structure of holding at least one connector of both connectors an elastic one in an omnidirectionally inclinable and a projectable and retreatable in relation to the opposite connector. CONSTITUTION:A pair of connectors 21, 35 mutually detachable with revolution centering around one engaging section 20 of a paper feeder 11 are fitted near the engaging section 20 of the paper feeder 11 on the side to be afterward engaged and to a printer proper 12, and structure in which at least one connector 21 of both connectors 21, 35 is held is made on elastic holding structure 25 omnidirectionally inclinable and projectable and retreatable in solution to the opposite connector 35. The connectors 21, 35 are also connected at the same time as mounting to the printer proper 12 of the paper feeder 11, thus simplifying the detachable operation of the connectors 21, 35. Both connectors 21, 35 are fitted and disassembled under the state in which both center lines do not coincide at that time, but both connectors 21, 35 are installed and disconnected smoothly and positively by said structure, thus resulting in no possibility of damage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method in which a motor serving as a drive source exclusively for paper feeding is attached to a paper feeding device, and the motor is connected to a power supply via a wiring system on the printing machine main body side. The present invention relates to a printing device configured to do this.

[Conventional technology]

2. Description of the Related Art Among printing devices in which a paper feeding device is detachably attached to a printing machine main body that includes a printing section, there is one in which a motor serving as a drive source exclusively for feeding paper is provided on the paper feeding device side. In such a printing device, a connector is provided to simplify the wiring for connecting the motor to the power supply, and by connecting this connector to a connector provided on the printing machine main body side, the motor can be connected to the printing machine. The idea is to connect to the power supply via the wiring system on the main body side. In this case, it is desirable that the connector on the paper feeder side and the connector on the print main body side be connected at the same time when the paper feeder is connected to the device.

By the way, in general, the structure for attaching the paper feeder to the printer body is one of the retaining parts (engaging grooves) 2 and 3 provided at the front and back of the bottom of the paper feeder 1, as shown in FIG. The entire paper feeding device is rotated around one of the retaining parts 2, in which the engaging part 2 (in the case of the front) is engaged with the engaged part (engaging protrusion) 5 of the printing machine main body 411. Then, the other retaining part 3 is engaged with the engaged part (retaining protrusion) 6 on the printing machine main body 4 side, and then the lock is pulled and is biased to rotate in one direction by the tension spring 7. The hook 8 prevents the engaging part 3 and the engaged part 6 from coming apart. Therefore, in order to connect the connectors 9 and 10 provided on each of the paper feed device and the printing machine main body 4 at the same time as the paper feed device is installed, the engagement portion ( In this example, the rear engaging portion 3
), and the structure is such that the connectors 9 and 10 can be connected to each other while rotating the paper feeding device.

[Problem that the invention seeks to solve]

In order to connect connectors 9 and 10 smoothly, it is better to connect connectors 9 and 10 while approaching each other in a straight line, as shown in Figure 8. When making a connection, as shown in Figure 9, the connection is started with the center lines of both connectors 9.10 not parallel, and the end faces of both connectors 9.10 abut each other to make a smooth connection. There is a risk that the connector will be lost, making the connection of the connector uncertain, or causing damage to the connector.

The present invention has been made to solve such problems, and its purpose is to provide a printing machine main body having a printing section, a paper feed device having an engaging section that engages with the printing machine main body at the front and back of the bottom. After one engaging part of the paper feeding device is engaged with the printing machine main body, the paper feeding device is rotated around that engaging part and the other engaging part is engaged with the printing machine main body. By doing so, in a printing device where the paper feeding device is attached to the printing machine main body, a motor that is a drive source exclusively for paper feeding is attached to the paper feeding device, and the engagement of the side of the paper feeding device that is to be engaged later is also possible. A pair of connectors are provided in the vicinity of the unit and on the printing machine body to simplify the operation of attaching and detaching the connectors by providing a pair of connectors that are attached to and detached from each other as the paper feed device rotates about the one engaging portion, The purpose is to ensure that both connectors can be connected and disconnected smoothly and reliably.

[Means for solving problems]

In the printing device of the present invention, the structure for holding at least one of the two connectors is an elastic holding structure that can be tilted in all directions and can be moved in and out of the other connector.

[Effect]

In the above configuration, after one engaging part of the paper feeding device is engaged with the engaged part on the printing machine main body side, the paper feeding device main body is rotated around the engaging part and the other engaging part is engaged with the engaged part of the printing machine main body side. The paper feeding device can be attached to the printing machine body by engaging the mating part with the other engaged part on the printing machine body side, and this attachment is sometimes done in 1@
The connectors are connected at the same time. At this time, the center lines of both connectors are not parallel when they are connected, but the structure that holds at least one connector has an elastic holding structure that is tiltable in all directions and can be moved in and out of the mating connector. Therefore, the connection between the two is smooth and reliable.

(Example of the invention) An embodiment of the present invention will be shown below.

FIG. 1 shows a state in which the paper feeding device 11 is mounted on the main body 12 of the printing machine. The printing machine main body 12 has a printing section consisting of a printing head, a platen, etc. arranged in stages.

Paper bag! 11 is a paper sheet holding section 1 that holds paper sheets 13 in a stacked manner;
4, and a paper feed roller 15 that feeds the uppermost paper sheet 13 held by the single sheet holding al 114 one by one toward the device 12. In addition, the paper feed bag [11 includes a stacker 16 for holding printed paper sheets 13, and a printing machine main body 1].
The printed paper sheet 13 discharged from the second side is transferred to the stacker 16.
A discharge port 17 for sending the paper to the paper is provided. Further, the paper feeding device 11 is provided with a drive motor 18 for rotationally driving the paper feeding roller 15 and the paper ejection roller 17, and a groove-shaped front and rear engagement portion 19, 20 is provided at the bottom. There is.

A connector 21 is attached near the rear engaging portion 20. Furthermore, as shown in FIG. 2, a locking hook 22 is rotatably mounted near the rear engaging portion 20, and this hook 22 is moved by the elastic force of a tension spring 23.
The locking end portion is held at an intermediate position within the engaging portion 20. In addition, 24 in the figure is the spring 2 of the locking hook 22.
This is a stopper that restricts the amount of rotation due to 3.

The connector 22 is held on the frame portion of the paper feeder 11 by an elastic holding structure 25 as shown in FIG. That is, two studs 27 are provided protruding from a fixed plate 26 fixed to the frame of the paper feeder 11, and each stud 2
A compression coil spring 28 is arranged on the outside of the spring 7, and a movable plate 29 is arranged on both studs 27.
8 is pushed in and fitted, and the connector 21 is attached to the movable plate 29. In addition, 30 in the figure indicates each stud 27.
The screw that screws into the top end of the is a set screw, and this screw 30
The head of the movable plate 29 is prohibited from being removed from the stud 27. Further, reference numeral 31 in the figure indicates a fixing screw, and the connector 21 is attached to the movable plate 29 together with the printed circuit board 32 using this screw 31. In the connector 21, the opening edge of the connection recess is an inclined surface 21A that widens outward as shown in FIG.

On the other hand, as shown in FIG. 1 and FIG. A connector 35 that pairs with the connector 21 on the device 11 side is provided.

Next, the effect will be explained.

When attaching the paper feed device 11 to the printing machine main body 12, first engage the front engaging portion 19 of the paper feed device 11 with the engaged portion 33 on the printing machine main body 12 side as shown in FIG. , by rotating the side body of the paper feeder 11 around the front engaging portion 19,
The rear engaging portion 20 is engaged with the engaged portion 34 on the printing machine main body 12 side. At this time, the paper feed device! 11 side connector 2
1 approaches the connector 35 on the printing machine main body 12 side with its center line inclined, so the end face of the connector 35 comes into contact with the end face of the connector 35 on the printing machine main body 12 side (No. 9 (see figure), the holding structure of the connector 21 is an elastic holding structure 25 that can be tilted in all directions and can be moved in and out of the mating connector. The coil spring 28 is gradually compressed (compression amount a). Then, when the engaging part 20 moves to a predetermined engagement position with the engaged part 34 and the center lines of both connectors 21 and 35 coincide, the connector 21 is immediately returned to its original position by the elastic force of the spring 28. , the connection state is as shown in FIG.

In addition, the locking hook 22 collides with the engaged portion 34,
When the engaging part 20 once rotates in the direction against the tension spring 23 and moves to a predetermined engagement position with the engaged part 34, it returns due to the elastic force of the spring 23, and the engaging part 20 and the engaged part 20 are returned to each other by the elastic force of the spring 23. Separation from the joining portion 34 is now prevented, and the installation of the paper feeding device 11 is completed.

When both connectors 21.35 are connected in this way,
The drive motor 18 is connected to a wiring system on the printing machine main body 12 side through both connectors 21 and 35, and is further connected to a power source through the wiring system.

When removing the paper feed device 11 from the printing machine main body 12, the locking hook 22 is rotated against the tension spring 23, and the locking end of the hook 22 is retracted out of the engaging portion 20. After separating the rear engaging portion 20 from the engaged portion 34,
The front engaging portion 19 is separated from the engaged portion 33. At this time, when the rear engaging portion 20 separates from the engaged portion 34, both connectors 21 and 35 also separate.

In the above configuration, the connector 21 on the paper feeding device 11 side and the connector 35 on the printing machine main body 12 side can be connected and detached from the paper feeding device 11.
Since this is done at the same time as the connector is attached to and detached from the printing machine main body 12, there is no need for a special operation for attaching and detaching the connector, thereby simplifying the attaching and detaching operation.

Further, the structure for holding the connector 21 on the side of the paper feeder 11 is an elastic holding structure 25 that can be tilted in all directions and can be moved in and out of the mating connector 35. Despite the structure in which both connectors 21 and 35 are attached and detached with each other as the paper feed bag @11 rotates around the axis, the attachment and detachment is carried out smoothly and reliably, preventing damage to the connectors 21 and 35. There is no risk of this happening.

In addition, since the opening edge of the connector 21 has an inclined surface 21A that widens outward, both connectors 21.
When the center lines of 35 substantially coincide, the action of the inclined surface 21A ensures that the center lines of the two coincide, and the connection between the two can be made even more smoothly.

Note that the present invention is not limited to the above embodiments.

For example, when attaching the paper feed device to the printing machine main body, the rear engaging part may first be engaged with the printing machine main body, and then the front retaining part may be engaged with the printing machine main body. In this case, The connector is provided near the front engagement portion. Also,
The structure for holding the connector on the printing machine main body side may be an elastic holding structure that is tiltable in all directions and can be freely retracted from the connector on the paper feed device side, or the holding structure for both connectors may be made in such a structure. It may also be an elastic holding structure.

〔Effect of the invention〕

As described in detail above, the present invention comprises a printing machine main body equipped with a printing section, and a paper feeding device having an engaging section that engages with the printing machine main body at the front and back of the bottom. After engaging the mating part with the printing machine main body, the paper feeding device is rotated around the engaging part and the other retaining part is engaged with the printing machine main body, so that the printing machine of the paper feeding device In a printing device that is attached to the main body, a motor that serves as a drive source exclusively for paper feeding is attached to the paper feeding device, and a motor is installed near the engaging portion of the paper feeding device on the side to be engaged later and the printing machine main body. , a pair of connectors are provided that are mutually attached and detached as the paper feeding device rotates about the one engaging portion, and a structure that holds at least one of both connectors is tiltable in all directions, and It has an elastic holding structure that can freely move in and out of the mating connector.

Therefore, after engaging one of the retaining parts of the paper feeder with the printing machine main body, by rotating the paper feeder main body around that engaging part, the other engaging part is attached to the printing machine main body. engage,
The paper feeding device can be attached to the printing machine body, and the connector can be connected at the same time as this attachment, so that the operation of attaching and detaching the connector is simplified. At this time, both connectors are connected and disconnected without their center lines aligning, but the structure that holds at least one connector is tiltable in all directions and can be moved in and out of the other connector. Because of the elastic holding structure, both connectors can be attached and detached smoothly and reliably, and there is no risk of damage to the connectors.

[Brief explanation of drawings]

1 to 6 show an embodiment of the present invention,
Figure 1 is a schematic side view showing the paper feeder installed on the printer body, Figure 2 is a schematic side view to explain the procedure for installing the paper feeder to the printer body, and Figure 3 is a schematic side view showing the installation procedure of the paper feeder to the printer body. A front view showing an exploded view of the elastic holding structure, FIG. 4 is IV- in FIG.
IV sectional view, Figures 5 and 6 are front views showing the connector connection operation in sequence, Figures 7 to 9 show conventional examples, and Figure 7 shows how the paper feeding device is attached to the printing machine body. 8 is a schematic side view for explaining the procedure, and FIGS. 8 and 9 are side views of the connector for explaining the problems. 11...Paper feeding device, 12...Printing machine main body, 18...
・Drive motor, 19.20...Engagement part, 21.35・
... Connector, 21A... Inclined surface, 25... Elastic holding structure, 28... Compression coil spring, 33.34
...Engaged part. Applicant's representative Patent attorney Takehiko Suzue Figure 3 Figure 4 Figure 5 Figure 6

Claims (2)

[Claims] (1) Consists of a printing machine body equipped with a printing section, and a paper feeding device having an engaging section that engages with the printing machine main body at the front and back of the bottom, and one engaging section of the paper feeding device is engaged with the printing machine main body. In a printing device in which the paper feeding device is attached to the printing machine body by rotating the paper feeding device around the engagement portion and engaging the other engagement portion with the printing machine body after the paper feeding device is attached to the printing machine body. , a motor that serves as a drive source exclusively for paper feeding is attached to the paper feeding device, and a motor is installed near the engaging portion of the paper feeding device on the side to be engaged later and on the main body of the printing machine. A pair of connectors are provided that are connected to and removed from each other as they rotate about the engaging part, and the structure that holds at least one of both connectors is tiltable in all directions and can be moved in and out of the mating connector. 1. A printing device characterized in that the motor has an elastic holding structure, and the motor is connected to a power source through both connectors and a wiring system on the printing device main body side. (2) The printing device according to claim 1, wherein the elastic holding structure has a structure in which a connector is attached to the printing device main body or a frame portion of a paper feeder via a pair of spring members.