JPH059190Y2 - - Google Patents

Description

[Detailed explanation of the invention] Purpose of the invention (industrial application field) This invention is a printer configured so that a cable is connected to a connector on a board arranged inside the printer housing through an opening provided in the housing of the printer body. In particular, the present invention relates to a substrate protection device for a printer that protects a substrate exposed through an opening.

(Prior Art) Conventionally, this type of printer has a relatively large opening on the back side of the housing, and a board equipped with various memory elements, variable resistors, connectors, etc. inside the housing from the opening. There was one in which the opening was opened and closed by attaching and detaching a lid to the opening. Then, if necessary, remove the lid and connect an external device cable to the connector on the board through the opening, or replace or adjust the memory element, variable resistor, etc. on the board. I was doing it. In particular, cable connections to connectors were often made by the user.

(Problem that the invention attempts to solve) Therefore, when connecting the cable to the connector,
There was a risk of component damage or short circuit accidents due to inadvertent contact with components other than the connector exposed on the board. Furthermore, after connecting a cable to a connector, the opening is often left open without being sealed with a lid, in which case metal pieces such as paper clips or dust may enter the board through the opening. There was also a risk that the printer would malfunction.

This idea was made in view of the above-mentioned circumstances, and it not only makes it easy to replace and adjust parts on the board, but also prevents damage to parts other than the connector when connecting cables to the connector. The object of the present invention is to provide a printer board protection device that can prevent contamination and short circuit accidents caused by foreign matter falling onto the board.

Structure of the invention (means for solving problems) In order to achieve the above object, in this invention, an opening is provided in the casing of the printer main body, and through the opening, a substrate disposed inside the casing is A cable for connecting an external device is connected to the connector, and a partition wall made of a flexible material that covers a part of the board other than the connector is provided in an openable and closable manner with respect to the opening. We are hiring.

(Function) Therefore, a cable for connecting an external device is connected to the connector through the opening. At this time, the parts of the board other than the connector are covered by the partition wall, so the parts on the board are protected. Further, by moving the partition wall toward the opening side based on its flexibility, the inside of the housing is communicated with the opening, and during the communication, parts on the board can be replaced or adjusted.

(Example) Hereinafter, an example embodying this invention will be described in detail based on FIGS. 1 and 2.

Now, the housing 2 of the printer main body 1 in this embodiment has a bottom wall 2a and a side wall 2b at its rear part.
The recess 2c is divided by the recess 2c.
A cover 2d is detachably attached to the upper opening of c, and the upper opening is opened and closed by attaching and detaching the cover 2d. Below the cover 2d, between the both side walls 2b, a connecting portion consisting of a rear covering portion 2e and a pair of upper and lower rod-shaped portions 2f is constructed, and between the connecting portion and the cover 2d there is a passage hole 9 for continuous paper. is formed. Further, the rear covering portion 2e, both rod-shaped portions 2f and one side wall 2
A horizontally long opening 3 that communicates with the inside of the housing 2 through b.
are divided into sections. The opening 3 can be opened and closed by a lid 4 that is detachably attached to the housing 2 from the outside of the housing 2. That is, engagement grooves 5 and 6 extending along the longitudinal direction of the opening 3 are formed at the upper and lower edges of the opening 3. On the other hand, engagement portions 7 and 8 that can be engaged and detached from the engagement grooves 5 and 6 are formed on the upper and lower edges of the lid body 4, respectively. Then, by engaging and disengaging the engaging portions 7 and 8 with respect to the engaging grooves 5 and 6, respectively, the lid body 4 is attached to and detached from the housing 2,
The opening 3 is opened and closed. Further, a cable lead-out hole 4a is provided in one side of the lid body 4.

Inside the housing 2, an electric circuit board 10 of the printer main body 1 is disposed on the bottom wall 2a,
a rear end portion is arranged along the opening 3;
It is supported and fixed on a support protrusion 2g protruding from the inner surface of the bottom wall 2a. On the rear end of the board 10, an interface connector 11 and an automatic sheet feeder connector 12 are arranged in parallel.
2, on the board 10 inward of the housing 2,
Electrical components such as a memory element 13 and a variable resistor (not shown) are provided.

Inside the opening 3, a partition wall 14 made of flexible synthetic resin and having a substantially L-shaped cross section is disposed along the opening 3. That is, the partition wall 14 includes a bottom wall part 14a and a side wall part 14b, and the bottom wall part 14
a is integrally fixed with the substrate 10 via a spacer 15 to the support protrusion 2g. Further, both the connectors 11 and 12 pass through the bottom wall portion 14a and protrude upward. Further, the side wall portion 14b stands up at a position inward of the housing 2 from both the connectors 11 and 12, and its upper edge touches the back surface of a horizontally long chassis reinforcing pipe 16 disposed within the housing 2 between the both side walls 2b. It has elasticity in the direction of contact. As shown by the solid line in FIG. 2, when the side wall portion 14b and the reinforcing pipe 16 are in contact with each other, the opening 3 is closed at a position inward from both connectors 11 and 12, and both connectors The upper surface of the substrate 10 except the mounting portions 11 and 12 and parts such as the memory element 13 are covered. Further, as shown by the two-dot chain line in FIG. 2, the side wall portion 14b of the partition wall 14 is bent against its own flexibility and its upper end portion is moved toward the opening portion 3 side, thereby opening the opening portion. 3 is open so that the storage element 13, variable resistor, etc. can be replaced or adjusted.

Note that, if necessary, a locking piece 17 may be provided on the reinforcing pipe 16 to removably lock the upper end edge of the partition wall 14.

Therefore, in order to connect a cable (not shown) for connecting an external device to the printer main body 1, first, the engaging parts 7 and 8 are disengaged from the engaging grooves 5 and 6, and the lid body 4 is removed from the housing 2. . This opens the opening 3 behind the partition wall 14 and connects both connectors 1.
1 and 12 are exposed as shown in FIG. 1, and cables can be easily connected to both connectors 11 and 12. At this time, both connectors 11,
The upper surface of the board 10 except for the mounting part 12 and the board 10
Since the parts such as the memory element 13 on the top are covered and protected by the partition wall 14, it is possible to prevent damage, short circuit accidents, etc. due to contact with the substrate 10, parts, etc. Further, when the lid 4 is attached again after the cable is connected, the connected cable can be pulled out from the cable outlet hole 4a of the lid 4.

Furthermore, even if a metal piece such as a clip gets into the housing 2 through the opening 3 when the lid 4 is removed, short-circuit accidents etc. can be prevented since the board 10 and components are covered and protected by the partition wall 14. can do. In addition, since dust and the like entering the housing 2 through the opening 3 is substantially blocked by the partition wall 14, it is possible to prevent dirt from contaminating the board 10, parts, etc. due to dust, and malfunction of the printer body 1 due to the contamination can be prevented. You can also

On the other hand, by removing the lid 4 and tilting the upper end of the side wall portion 14b of the partition wall 14 toward the opening 3,
The inside of the housing 2 communicates with the opening 3, and the side wall 14b
Components such as the memory element 13 and the variable resistor located further inside can be easily replaced or adjusted.

Note that this invention is not limited to the above-mentioned embodiment, and for example, the opening 3 may be provided on the side surface of the housing 2, the partition wall 14 may be made of a transparent material, etc. without departing from the gist of this invention. The configuration can be changed and implemented as appropriate within the scope.

Effects of the invention As detailed above, according to this invention, parts on the board can be easily replaced and adjusted.
When connecting a cable to a connector, etc., it can protect parts other than the connector from damage or contamination, and has the excellent effect of preventing short-circuit accidents.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of this invention, with Figure 1 being a partially exploded perspective view of the printer body seen from the back side, and Figure 2 being a partially broken side view of the rear of the printer body. It is. DESCRIPTION OF SYMBOLS 1... Printer body, 2... Housing, 3... Opening, 10... Board, 11... Interface connector, 12... Connector for automatic sheet feeder, 14... Partition wall.

Claims (1)

[Scope of claims for utility model registration] 1. An opening 3 is provided in the casing 2 of the printer body 1,
The printer is configured such that a cable for connecting an external device is connected to connectors 11 and 12 on a board 10 disposed inside the housing 2 through the opening 3, and the connector 11 is connected to the opening 3. , 12. , 12. A substrate protection device for a printer, characterized in that a partition wall 14 made of a flexible material that covers a portion of a substrate 10 except for 12 is provided so as to be openable and closable. 2 The partition wall 14 connects the connectors 11 and 12
The substrate protection device for a printer according to claim 1, which is operated to be opened by rising up inside the main body 1 and tilting the upper end toward the opening 3.