JPS61206682A - Connecting construction for component parts of printer - Google Patents

Abstract

PURPOSE:To enable the title construction to be used for automatic assembly of a printer and inexpensively assemble the printer with a simple construction, by a construction wherein one of terminals to be connected to each other is made to be elastic or an elastic member is placed on the one terminal, and the terminals are pressed against each other by utilizing the elasticity. CONSTITUTION:One of terminals to be connected to each other, e.g., those of a control substrate 1 and an intermediate substrate 2, those of the substrate 2 and a flexible cable 4, those of the cable 4 and a carriage substrate 7, those of the substrate 7 and a printing head 8, or those of a paper-feeding motor 9 and the substrate 3, is made to be elastic (connecting parts 1a, 8a, 9a) or the elastic member 5 is placed on one of the mated terminals, and the mated terminals are pressed against each other with an appropriate force by utilizing the elasticity. For connection of solid component parts such as the control substrate 1 and the intermediate substrate 2 to each other, a springy and conductive terminal 10 is used. Where one of the component parts is a flexible one such as the flexible cable 4, an elastic member 5 such as a rubber piece is placed thereon, and a pressure is exerted thereon.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an inter-component connection structure suitable for electrically connecting each component from a control board to a print head, etc. when assembling a printer. It is something.

[Conventional technology]

Impact type printers, such as wire dot type printers, used as output devices in various electronic devices, use a print head, a space morph to move the print head in space along a platen, or a space morph to move the platen intermittently. The paper feed motor that feeds the paper printed by the print head and the control board that controls these are electrically connected via a relay board, flexible cable, and carriage board, but conventionally When making connections between these parts, generally the terminals of each part are connected directly or by soldering using wiring, or by attaching a connector to each part and fitting the connectors together. Methods such as matching are adopted.

[Problem that the invention seeks to solve]

However, the former method using soldering cannot be used when automatically assembling the printer mechanically, and the latter method using connectors has problems in that the structure becomes complicated and expensive.

The present invention was made to solve these problems, and is applicable to the automatic assembly of printers, has a simple structure and can be realized at low cost, and also ensures reliable electrical connection between each component. The purpose is to realize a component quantity connection structure for a printer that can obtain the following.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a control board and a relay board, the relay board and a flexible cable link, the flexible cable and a carriage board, the carriage board and a print head, and a paper feeding system. Either one of the terminals of the paper feed motor and the relay board is made elastic, or an elastic member is placed on one of the terminals, and the elasticity of the terminal or the elastic member is used to make the terminals connect to each other. These are overlapped and pressed together.

[Effect]

According to the above-mentioned means, when assembling the printer, the above-mentioned parts can be stacked and connected in order according to the assembly order, and the terminals to be connected can be pressed together using their own elasticity or the elasticity of the elastic member. , the terminals can be brought into close contact with each other with appropriate pressure contact force, and a good connection can be achieved.

Therefore, it can be used when automatically assembling a printer, and can be realized with a simple structure and at low cost.

〔Example〕

Examples will be described below with reference to the drawings.

The drawing is a perspective view showing an embodiment of a printer component connection structure according to the present invention, in which 1 is a control board, 2 is a relay board, 3 is a mounting plate, 4 is a flexible cable,
5 is an elastic member such as a rubber plate piece having elasticity; 6 is a pressing plate;
7 is a carriage substrate, 8 is a print head, and 9 is a paper feed motor.

The control board 1 includes a space motor (not shown) provided on the lower surface of the carriage board 7, and a carriage board 7.
A circuit for controlling the print head 8 and the paper feed motor 9 mounted on the top is mounted, and a connection part 1a is provided at one end of the bottom side, and an elastic (spring) (not shown) is provided on this connection part 1a. A plurality of terminals are provided.

=3- Further, the carriage substrate 7 is movably attached to a guide shaft (not shown), and is self-propelled in a reciprocating direction along the guide shaft by a space motor (not shown) provided on the lower surface. At this time, the flexible cable 4 can be freely deformed.

On the other hand, the print head 8 prints on a sheet of paper placed on a platen (not shown) parallel to the guide shaft while moving in space due to the self-propulsion of the carriage substrate 7. A connecting portion 8a is provided, and the connecting portion 8a has elasticity (spring property) not shown.
A plurality of terminals are provided.

Further, the paper feed motor 9 drives the platen to feed the paper set on the platen.
A connecting portion 9a is also provided at the bottom of this paper feed motor 9, and this connecting portion 9a has elasticity (spring property not shown).
A plurality of terminals are provided.

Therefore, in order to electrically connect these parts, first stack the relay board 2 on the mounting plate 3, and then attach the two to a base (not shown) provided in the lower case of the printer using screws, etc. Fix it properly.

Then, each terminal provided on the connecting portion 1a of the control board 1 is overlapped and brought into contact with a plurality of terminals patterned near one end of the relay board 2, respectively provided on the control board 1 and the relay board 2. A screw is passed through the through hole, and this screw is fastened to a screw hole provided in the mounting plate 3. As a result, one end of the control board 1 is fixed onto the relay board 2, and due to the elasticity of each terminal of the connecting portion 1a, the terminal and each terminal of the relay board 2 are uniformly pressed against each other, and are brought into close contact with each other and electrically Conduct.

Moreover, the flexible cable 4 has a plurality of terminals formed in a pattern on one end thereof superimposed on a plurality of terminals formed in a pattern near the other end of the relay board 2, and an elastic member 5 and a pressing plate 6 are placed thereon. After arranging them one on top of the other in sequence, screws are passed through the holes provided in the pressing plate 6, elastic member 5, flexible cable 4, and relay board 2, and these screws are fastened to the screw holes provided in the mounting plate 3. do. As a result, one end of the flexible cable 4 is fixed on the relay board 3 together with the elastic member 5 and the pressing plate 6, and the elasticity of the elastic member 5 connects each terminal of the flexible cable 4 with each terminal of the relay board 4. are uniformly pressed together and are in close contact with each other, making them electrically conductive.

The other end of the flexible cable 3 has a plurality of terminals patterned on the other end and is superimposed on a plurality of terminals patterned on one side of the carriage substrate 7, and is made of elastic material in the same manner as described above. The member 5 and the pressing plate 6 are stacked and fixed onto the carriage substrate 7 with screws. Therefore, as in the case described above, each terminal of the flexible cable 4 and each terminal of the carriage substrate 7 are uniformly pressed against each other, and are in close contact with each other to be electrically conductive.

Furthermore, the printing head 8 has a connecting portion 8a provided at its lower part.
The respective terminals are superimposed on a plurality of terminals patterned at predetermined positions on the carriage substrate 1, and both ends of the connecting portion 8a are pressed down from above by a fixing means (not shown) to be fixed to the carriage substrate 1. Then, as mentioned above, the connection part 8
Since each terminal a has elasticity, each terminal and each terminal of the carriage substrate 7 are uniformly pressed against each other, and are in close contact with each other to be electrically conductive.

On the other hand, the paper feed motor 9il-1: For example, it is fixed to a support plate formed upright on the base plate (not shown), but by setting this fixed position at an appropriate height in advance, the paper feed motor 9 can be connected. At the same time when the portion 9a is pressed onto the relay board 3, each terminal provided on the connecting portion 9a overlaps with a plurality of terminals patterned near the center of the interrupted board 4, respectively. Here, the connection part 9
Since each of the terminals 1 provided on the terminal a has elasticity as described above, each of these terminals and each terminal of the relay board 3 are uniformly pressed against each other, and are in close contact with each other to be electrically conductive.

In this example, since the terminals of each component to be connected are pressed against each other, each component can be stacked one on top of the other in order according to the printer's assembly procedure, and one of the connection terminals to be connected is made of elastic material. Since the pressure bonding is performed by overlapping elastic parts such as rubber plate pieces, it is possible to uniformly press the multiple terminals with an appropriate force without damaging them, and the print head 8 and the print The space motor that moves the head in space and the control board 1 can be electrically connected well via the relay board 2, the flexible cable 4, and the carriage board 7, and the paper feed simulator 9 can also be connected via the relay board 2. control board 1
A good electrical connection can be made to the

There are various structures for pressure welding connections, but in order to connect hard objects such as the connection between the control board 1 and the relay board 2, we use a pressure welding structure with spring properties and conductivity as shown in Figure 2. It is better to use a terminal 10 of 100 to provide a more stable contact condition and longer life.

On the other hand, if one side is flexible like the flexible cable 4, a sufficiently good contact state can be obtained by simply pressing an elastic member 5 such as rubber overlappingly as shown in FIG. These connection means are suitable for automatic assembly because it is only necessary to stack each component from above.

〔Effect of the invention〕

As explained above, the present invention provides a control board and a relay board of a printer, a flexible cable and a flexible cable, a carriage board and a carriage board, a print head and a paper feed board, and a paper feeding board. Either one of the terminals to be connected to each other has elasticity, or an elastic member is placed on one terminal, and the plurality of terminals to be connected can be connected using the elasticity of one terminal or the elasticity of the elastic member. Since the structure is such that pressure is applied uniformly with an appropriate amount of force, each of the above-mentioned parts can be stacked and connected in order according to the assembly order when assembling the printer, and therefore can be applied to automatically assemble the printer.

However, since the terminals are pressed together using their elasticity, a reliable electrical connection can be obtained and the terminals will not be destroyed, and it is also possible to apply elasticity to the terminals without using expensive connectors as in the past. Since the connection is carried out by holding or using an elastic member, the structure is simple and can be realized at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a component quantity connection structure for a printer according to the present invention, and FIGS. 2 and 3 are views showing specific examples of a connection structure suitable for pressure contact connection. 1... Control board 1a... Connection part 2... Relay board 3... Mounting plate 4... Flexible cable 5... Elastic member 6... Pressing plate 7... Carriage board 8...Print head 8a...Connection part
9...Paper feed motor 9a...Connection part 10...
・Terminal patent applicant Oki Electric Industry Co., Ltd. Representative Patent Attorney Takashi Kanakura Erin 21 2 Relay board 3 2 Procedural amendment (method) % formula % 1. Indication of the case 1985 Patent Application No. 46427 2 , Title of the invention Connection structure of printer parts volume 3, Relationship with the case of the person making the amendment Patent applicant address 1-7-12 Toranomon, Minato-ku, Tokyo Name (029) Oki Electric Industry Co., Ltd. Representative Hashimoto Nankai Otoko 4, agent

Claims (1)

[Claims] 1. Either one of the terminals to be connected to each other of the printer's control board and relay board, the relay board and flexible cable, the flexible cable and carriage board, and the carriage board and print head should be made elastic; Alternatively, an inter-terminal connection structure for a printer characterized in that an elastic member is placed on one terminal, the terminals to be connected are overlapped, and the terminals are pressed together using the elasticity of the terminal or the elasticity of the elastic member. .