JPH04273198A - Electronic device - Google Patents

Abstract

PURPOSE:To realize a structure for fixing a circuit substrate readily which is built in a housing such as a two piece structure. CONSTITUTION:A plurality of circuit substrates 23, 24 of approximately the same shape are arranged and connected in parallel by spacers 19 to 22. A fitting hole 27 whereto a projecting support 26 fits is formed in a circuit substrate 24 in opposition to one housing 8. Elastic members 20, 28 wherewith a projecting support 25 comes into contact are attached to a circuit substrate 23 in opposition to the other housing 7.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment such as label printers.

0002

[Prior Art] Electronic devices such as label printers have a structure in which, for example, a circuit board on which circuit components are mounted is built into a main housing formed by joining a first housing and a second housing. There is. In such electronic devices, the circuit board is fixedly built into the main body housing, so the circuit board is generally screwed to one of the first housing and the second housing.

0003

SUMMARY OF THE INVENTION In the above-mentioned electronic devices, a circuit board is fixedly built into the main body housing by screws or the like. However, since the work of screwing the circuit board in this way is complicated, it reduces the productivity of the device.

[0004]Furthermore, in recent years, there has been a demand for miniaturization of electronic devices due to the need for portability, and it has become common practice to divide circuit boards into a plurality of parts and arrange them in parallel. For example, when three circuit boards are arranged in parallel, the circuit board located between the two circuit boards cannot be screwed directly to the housing, so the convex penetrating one circuit board cannot be screwed directly to the housing. A protruding portion is provided on the inner surface of the housing, and the circuit board in the middle is screwed to the tip of this protruding portion. However, this increases the number of screws and
Since the structure of each part becomes complicated, the productivity of the device is extremely reduced.

[0005]

[Means for Solving the Problem] In an electronic device in which a main housing is formed by joining at least a first housing and a second housing, a plurality of circuit boards having substantially the same shape each having a circuit component mounted thereon are arranged in parallel using a spacer. a fitting hole in which a supporting protrusion protrudes from the inner surfaces of the opposing first housing and second housing, and the supporting protruding part fits into one circuit board facing the second housing; was formed, and an elastic member whose supporting protrusion abuts was attached to one circuit board facing the first housing.

[0006]

[Operation] A plurality of circuit boards having substantially the same shape each having circuit components mounted thereon are arranged and connected in parallel with a spacer, and support protrusions are provided on the inner surfaces of the first housing and the second housing that face each other. , by forming a fitting hole in which the support protrusion fits into one circuit board facing the second housing, and attaching an elastic member to which the support protrusion comes into contact with one circuit board facing the first housing. , a plurality of circuit boards can be fixedly built into the main body housing without requiring screws or the like.

[0007]

[Embodiment] An embodiment of the present invention will be explained based on the drawings. First, as illustrated in FIG. 2, a label printer 1, which is an electronic device of the present invention, is formed into a portable type, and is combined with a handy terminal 2, which is also portable, to configure an optical data transfer system 3. It is supposed to be done.

[0008] The label printer 1 is provided with shoulder belts 4 whose lengths are adjustable on both upper sides thereof, and a belt handle 6 on one side thereof. Here, the main body housing of this label printer 1 is as follows.
It has a structure in which a printer cover 9 and an interface cover 10 are connected in parallel on a front cover 7, which is a first housing, and a rear cover 8, which is a second housing, which are connected from the front and back. Here, a horizontally long mount discharge port 11 is formed between the front cover 7 and the lower edge of the printer cover 9, and a horizontally long label issuing port is provided on the front surface of the printer cover 9, which is pivotally supported so as to be openable and closable. 12 are formed. In addition, in this optical data transfer system 3,
An information input hole 13 is formed on the front surface of the interface cover 10, and an annular support ring 14 is provided on the outer periphery of the information input hole 13.
is installed.

On the other hand, the handy terminal 2, which is also a barcode scanner, has an information output protrusion 16 protruding from the tip surface of a sharp portion 15a formed at one end of the housing 15, and a keyboard 17 and a keyboard 17 on the top surface of the housing 15. Displays 18 are arranged. The information output protrusion 16 of the handy terminal 2 is formed into a tapered step similar to a cone connected to a cylinder, and an optical lens is attached to the tip.

[0010] Furthermore, the circuit section of this label printer 1 is as follows:
As illustrated in FIG. 1, two rectangular circuit boards 23 and 24 connected in parallel by a spacer 19, an earth box 20, and connection connectors 21 and 22 are sandwiched between the front cover 7 and the rear cover 8. It has a built-in structure. Here, a support protrusion 25 with a rectangular cross section is provided on the inner surface of the front cover 7, and a cylindrical support protrusion 26 with a sharp protrusion at the tip thereof is provided on the inner surface of the rear cover 8. It is installed protrudingly. The support protrusion 26 of this rear cover 8 is connected to a fitting hole 27 formed in the circuit board 24.
At the same time, the supporting convex portion 2 of the front cover 7
5 comes into contact with a rubber cap 28, which is an elastic member attached to the circuit board 23, and the earth box 20. Further, the earth box 20, which is also a spacer for these circuit boards 23, is provided with an external connection jack 29 inside.
is an opening/closing cover 30 formed on the side surface of the rear cover 8.
It is located inside. Further, the earth box 20 is connected to the earth line (
(not shown), and comes into contact with the shield sheet 31 attached to the inner surface of the rear cover 8 by the elastic force of the gasket 32. Furthermore, the connection connectors 21 and 22, which are also spacers, are connected to the circuit board 2.
3 and 24, and are connected to printed wiring (not shown), and are detachably connected to each other.

In this optical data transfer system 3, when product data is input into the handy terminal 2 by, for example, operating the keyboard 17 or reading and scanning a bar code, the optical data transfer system 3 stores the product data in the RAM (Random A
The data is temporarily stored in an internal memory such as access memory. Therefore, when the information output protrusion 16 of the handy terminal 2 that stores this product data is inserted into the information input hole 13 of the label printer 1 and the keyboard 17 is operated, this product data is transmitted to the light signal from the information output protrusion 16 of the handy terminal 2. is output. Therefore, this optical signal is transmitted to the light receiving element (
(not shown), and is also temporarily stored in an internal memory such as a RAM, and used for tasks such as issuing barcode labels and managing product information.

[0012] In this label printer 1, the circuit boards 23 and 24 are divided into two parts and arranged in parallel, thereby reducing the area occupied by the circuit parts, thereby realizing a reduction in size and weight of the device. In this label printer 1, as illustrated in FIG.
, 8 is fitted into one of support protrusions 25 and 26 protruding from the inner surface of the support protrusions 25 and 26, and is held by the other via an elastic member 28. In other words, in this label printer 1,
Since the circuit boards 23 and 24 are fixedly built into the main body housing without requiring screws or the like, the assembly work is extremely easy and productivity is good. In addition, in this label printer 1, the supporting protrusion 25 protruding from the front cover 7 is connected to the earth box 20 without using an elastic member.
However, this earth box 20 is indirectly pressed and held against the supporting convex portion 25 by the elastic force of the gasket 32, and this earth box 20 also acts as an elastic member. Further, in this embodiment, the label printer 1 is illustrated in which two circuit boards 23 and 24 are arranged in parallel and held by the spacers 19 to 22 and the support projections 25 and 26 of the covers 7 and 8, but the present invention This method is applicable to fixing three or more circuit boards, and is also applicable to various electronic devices such as personal computers.

[0013]

As described above, the present invention provides an electronic device in which a main body housing is formed by joining at least a first housing and a second housing, in which a plurality of circuit boards having substantially the same shape each having circuit components mounted thereon are provided. are arranged in parallel and connected with a spacer, a support protrusion is provided protruding from the inner surfaces of the first housing and the second housing that face each other, and the support protrusion is fitted into one circuit board facing the second housing. By forming a fitting hole and attaching an elastic member whose support protrusion comes into contact with one circuit board facing the first housing, multiple circuit boards can be fixed within the main housing without the need for screws, etc. Since the device can be built into the device, the assembly work is extremely simple and it can contribute to improving the productivity of the device.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the entire system.

[Explanation of symbols]

1 Electronic equipment 7 First housing 8
Second housing 19-22 Spacer 20, 28 Elastic member 23, 24 Circuit board 25, 26 Support convex portion 27 Fitting hole

Claims (1)

[Claims] Claim 1: In an electronic device in which a main housing is formed by joining at least a first housing and a second housing, a plurality of circuit boards having substantially the same shape each having a circuit component mounted thereon are arranged in parallel with a spacer. a fitting hole in which a support protrusion is provided protrudingly on the inner surfaces of the first housing and the second housing that are connected and face each other, and the support protrusion is fitted into one of the circuit boards facing the second housing; form,
An electronic device characterized in that an elastic member is attached to one of the circuit boards facing the first housing, with which the support protrusion comes into contact.