JPH07336072A - Mounting apparatus of guide rail for printed-circuit board - Google Patents

Abstract

PURPOSE:To provide the mounting apparatus, of a guide rail, in which, even when a wall part for an enclosure or another component is arranged and installed in the insertion and detachment direction of a printed-circuit board, the printed-circuit board can be detached and attached easily by a slight operation to a limited part without dismantling the enclosure or the like. CONSTITUTION:A long hole 8a in the longitudinal direction and a long hole 8b in the transverse direction as holes for mounting are made in a base frame 3 on which guide rails 5 are to be mounted. The guide rails 5 are tightened firmly by mounting screws 6, 6 in parts to both ends of them. Thereby, when the mounting screws 6, 6 are set to a properly loosened state, the guide rails 5 can be circled along the long hole 8b in the transverse direction while a part near the long hole 8a in the longitudinal direction is used as the axial center, and the sliding direction of a printed-circuit board by the guide rails 5 can be changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for a guide rail for a printed circuit board, and more particularly, when mounting a printed circuit board on an electric device, the mounting device is mounted while sliding in a guide groove of the guide rail. However, the present invention relates to a mounting structure for mounting the guide rail to the base frame.

[0002]

2. Description of the Related Art As a conventional guide rail mounting device of this type, for example, as shown in FIG. 4, a base frame 13 having side walls 12 and 12 is fixedly provided in a housing 11 near an end thereof. Guide rails 15 and 15 having a concave cross section in which guide grooves 14 are provided on inner surfaces of both side walls 12 and 12 of the base frame 13.
Are mounted by mounting screws 16 and 16 at portions near both ends in a parallel state where the guide grooves 14 face each other.
The printed circuit board 17 is held at a predetermined position at 14, and the guide rails 15 and 15 are mounted on the side walls 12 and 12 of the base frame 13 with long holes 18a and 18b for mounting the guide rails. The guide rails 15 and 15 are provided with screw holes 19 and 19 near both ends thereof so that the guide rails 15 and 15 can be tightened from the outside of the side walls 12 and 12 by the mounting screws 16 and 16. , 15 are usually fixed at fixed positions on the base frame 13.

[0003]

[Problems to be Solved by the Invention] Conventional guide rail 1
Since 5 and 15 are fixed to the base frame 13 and the sliding direction of the printed circuit board 17 is limited to a fixed direction, even if it is necessary to remove the printed circuit board 17 after once assembling, the sliding direction thereof For example, if there is an obstacle such as the wall of the housing 11 or other parts, the printed circuit board 17 cannot be removed. Therefore, in the case where the printed circuit board 17 needs to be removed for maintenance, it is not possible. There are disadvantages and inconveniences that the necessary parts must be disassembled.

However, on the assumption that the sliding direction of the printed circuit board 17 is limited to a fixed direction, the shape of the housing 1 and the layout of other parts can be designed so that the printed circuit board 17 can be removed. However, due to various restrictions, there are many cases in which the wall portion of the housing 1 or other components must be arranged in the direction in which the printed circuit board 17 is removed.

Therefore, an object of the present invention is to cover a limited part without disassembling the casing or the like even when the wall portion of the casing or other parts are arranged in the insertion / removal direction of the printed circuit board. An object of the present invention is to provide a guide rail mounting device that allows a printed circuit board to be attached and detached with a slight operation.

[0006]

In order to achieve the above object, the present invention provides a guide rail by providing a base frame for mounting a guide rail with a longitudinal slot and a lateral slot as mounting holes. Of the guide rail along the horizontal long hole with the vicinity of the vertical long hole as the axis, with the mounting screw properly loosened. Is capable of turning, and the sliding direction of the printed circuit board by the guide rail can be changed.

[0007]

The guide rail is tightened at the predetermined mounting positions by the mounting screws at the portions near both ends thereof, whereby the guide rail is held at the predetermined mounting position in the guide groove of the guide rail.

On the contrary, when it is necessary to remove the guide rail, the mounting screw is appropriately loosened, and one end of the guide rail is laterally extended along the horizontal elongated hole with the vicinity of the vertical elongated hole as an axis. The guide rail changes the sliding direction of the printed board by the guide rail, and the printed board does not slide even if there is an obstacle in the drawing direction in the sliding direction at the specified mounting position. It can be taken out by changing the moving direction.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In the embodiment shown in FIGS. 1 to 3 as the structure of the printed circuit board guide rail mounting apparatus of the present invention, the side walls 2 and 2 are provided near the end of the housing 1 of the information processing terminal or the like. There is a fixed base frame 3, and guide rails 5 and 5 having a concave section are formed on the inner surfaces of the side walls 2 and 2 of the base frame 3 in parallel with the guide grooves 4 facing each other. Under both conditions, mount the guide rails 5 and 5 on both sides by using the mounting screws 6 and 6.
The printed circuit board 7 is held in a predetermined position in the guide grooves 4 and 4 of the above-mentioned guide rails. Regarding the mounting structure of the guide rails 5 and 5, holes for guide rail mounting are formed in both side walls 2 and 2 of the base frame 3. The guide rail 5,
5 are provided with screw holes 9 and 9 near both ends thereof to form side walls 2 and 2.
There is no difference from the conventional structure in that the mounting screws 6 and 6 are tightened from the outside.

As a special structure of the present invention with respect to the above-mentioned structure, as a guide rail mounting hole formed in both side walls 2 and 2 of the base frame 3, a longitudinal long hole 8a parallel to the guide rail 5 and a guide. The rail 5 is provided with a horizontal long hole 8b in a substantially vertical direction, and the long holes 8a and 8b are tightened with the mounting screws 6 and 6, whereby the mounting screws 6 and 6 are appropriately loosened. Originally, the longitudinal long hole 8
The guide rails 5 and 5 can be turned along the horizontal elongated hole 8b with the vicinity of a as the axis, and the sliding direction of the printed circuit board 7 by the guide rails 5 and 5 can be changed.

Based on the above structure, as shown in FIG. 1, the guide rails 5 and 5 are fixed to the base frame 3 by the mounting screws 6 and 6, and the guide grooves 4 and 4 in the guide rails 5 and 5 are fixed.
When it is necessary to slide the printed circuit board 7 under the guide of 1 while fixing the base frame 3 in the housing 1 and then remove the printed circuit board 7 for maintenance. While the mounting screws 6 and 6 are slightly loosened, the guide rails 5 and 5 are arranged such that the portion near the other end is in the lateral direction while the guide rails 5 and 5 are in the axial center near the longitudinal elongated hole 8a as shown in FIG. The guide rails 5 and 5 change the sliding direction of the printed circuit board 7 so that the printed circuit board 7 is swung along the elongated hole 8b of the guide rail 5, and the printed circuit board 7 is indicated by an arrow without touching the wall of the housing 1. In the embodiment shown in the drawing, the printed circuit board 7
It is natural that the removable or movable part of the keyboard 10 or the like provided in the direction of pulling out the printed circuit board 7 is removed after the removal, and the guide rails 5 and 5 are also changed in mounting direction. It may be inserted as it is, and after insertion, the guide rails 5 and 5 may be pivoted to restore them to predetermined positions and the mounting screws 6 and 6 may be tightened.

Screw holes 9, 9 in the guide rail 5
Alternatively, a nut may be used instead of a straight hole, and a separate nut matching the mounting screw 6 may be used for mounting. Also, the lateral elongated hole 8b is not a straight hole but a longitudinal elongated hole. It may be formed in an arc shape with the axis near 8a.

[0014]

As described above, according to the present invention, the guide rail mounting holes formed in the base frame are provided with a longitudinal long hole and a lateral long hole, so that the guide rail is long. Since the mounting screw is tightened in the hole, the guide rail is swung along the horizontal long hole with the vicinity of the vertical long hole as the axis, while the mounting screw is loosened appropriately. It is possible to change the sliding direction of the printed circuit board by the guide rails, therefore, even if there is an obstacle in the sliding direction at the predetermined mounting position that makes removal work complicated, without disassembling a wide area, There is an effect that the sliding direction of the guide rail can be changed and the printed circuit board can be attached and detached based on a simple operation on a small portion, and the maintenance work time and cost can be significantly reduced. It's that.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a mounting device of a printed circuit board guide rail of the present invention.

FIG. 2 is a vertical sectional view taken along the line II-II in FIG.

FIG. 3 is a vertical sectional side view showing a state in which the sliding direction of the guide rail is changed.

FIG. 4 is a vertical cross-sectional side view showing a conventional device for mounting a printed circuit board guide rail.

[Explanation of symbols]

 1 Case 2 Sidewall 3 Base Frame 4 Guide Groove 5 Guide Rail 6 Mounting Screw 7 Printed Circuit Board 8a Horizontal Long Hole 8b Long Vertical Hole

Claims (1)

[Claims] 1. Guide rails (5), (5) having guide grooves (4) facing each other on side walls (2), (2) of a base frame (3) provided in a housing (1). Under the parallel condition, the mounting screws (6) and (6) are mounted on both sides of the printed circuit board (7) in the guide grooves (4) and (4) of both guide rails (5) and (5). ) Is a device for mounting a guide rail for a printed circuit board, the guide rail mounting hole being formed in both side walls (2) and (2) of the base frame (3). , A longitudinal slot parallel to the guide rail (5) (8
a) and a horizontal elongated hole (8b) which is substantially vertical to the guide rail (5) are provided so that both elongated holes (8a) and (8b) are tightened by mounting screws (6) and (6). With this, the mounting screws (6) and (6) are appropriately loosened, and the guide rail (along the guide rail (8b) along the lateral long hole (8b) with the vicinity of the longitudinal long hole (8a) as the axis. 5) and 5) are turnable, and the sliding direction of the printed circuit board (7) by the guide rails (5) and (5) can be changed. Mounting device.