JPH0711515Y2 - Mounting structure for plate-shaped guide rails - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a guide rail mounting structure for a plate-like body such as a circuit board.

[Prior Art] In some electric devices and the like, a guide rail is provided for mounting a printed circuit board or the like.

FIG. 5 shows a conventional structure for mounting this type of guide rail. According to this structure, the mounting hole 12 is formed in the frame 10, and the boss 16 to be inserted into the mounting hole 12 is formed in the guide rail 14. boss
The reference numeral 16 designates a large diameter portion which is provided in the longitudinal direction of the guide rail 14 (direction perpendicular to the paper surface) to position the guide rail 14 with respect to the frame 10 and which penetrates through the mounting hole 12 at the tip portion to prevent coming off. 16A is formed to snap the guide rail 14 to the frame 10 and thus the frame 10
The guide rail 14 is attached to the. A guide groove 18 is formed in the guide rail 14, and the printed circuit board 20 is slidably inserted into the guide groove 18.

[Problems to be Solved by the Invention] However, in this mounting structure, since the boss 16 projects to the back side of the frame 10, the boss 16 is placed on the back side of the frame 10.
This requires a mounting space for escape, which is an obstacle to downsizing the entire device.

The present invention has been made in view of the above circumstances, and an object thereof is to obtain a mounting structure for a guide rail for a plate-shaped body that does not generate a wasted space on the back side of a mounting member such as a frame.

[Means for Solving the Problems] In order to achieve the above object, in a plate-shaped guide rail mounting structure according to the present invention, a guide rail having a guide groove into which the plate is slidably inserted, and One of the mounting member and the guide rail has a positioning recess, and the other has a positioning projection that fits into the positioning recess. A tongue extending in the longitudinal direction is formed on the mounting member, and a mounting recess for receiving each tongue is formed on the mounting member, and a mounting claw protruding inside the mounting recess for preventing each tongue from coming off. There is.

[Operation] According to the present invention having the above-described configuration, the positioning projection is fitted in the positioning recess to position the guide rail with respect to the mounting member, and the mounting claw prevents the tongue piece of the guide rail in the mounting recess from coming off. The guide rail is locked to the mounting member. Therefore, the guide rail can be attached to the attachment member without generating a wasteful space on the back side of the attachment member.

[Embodiment] FIGS. 1 to 4 show an embodiment of a mounting structure for a guide rail for a plate-shaped body according to the present invention. In this embodiment, a frame 30 is used as an example of a mounting member. It is applied to the mounting of the guide rail 32 for the printed circuit board.

A guide groove 36 into which a printed circuit board 34 is slidably inserted is inserted into the guide rail 32 as shown in FIGS.
Is formed and is used for attaching and detaching the printed circuit board 34. Further, the guide rail 32 is formed with tongues 38 and 40 extending in the longitudinal direction at both ends, and recesses 42, 44 and 46 are formed at predetermined intervals on the back surface of the intermediate portion. The tongues 38 and 40 are flush with the back surface of the guide rail as shown in FIGS. Recesses 42, 44, 46
Are formed over the entire guide rail height direction (see FIG. 2), and the portions adjacent to both of the recesses 42, 44, 46 are raised portions.
It is 48, 50, 52, 54. That is, the guide rail
The back surface of 32 has a raised portion 48, a recessed portion 42, a raised portion 50, a recessed portion 44, a raised portion 52, a recessed portion 46, and a raised portion 54 from the end side. The guide rail 32 is made of synthetic resin and can be elastically curved (in the direction of arrow A in FIG. 1) to the back side.

The frame 30 has side plates 56 as shown in FIGS.
Is provided, and the guide rail 32 is horizontally attached inside the side plate 56. A pair of side plates 56 are provided so as to face each other in parallel (only one side is shown in FIGS. 1, 3, and 4), and guide rails 32 are attached to the inside of each side plate 56. . As shown in FIG. 1, the side plate 56 is provided with mounting holes 58 at predetermined intervals in the horizontal direction,
60 are arranged in parallel, positioning holes 62, 64 are arranged in parallel between the mounting holes 58, 60, and the guide rail 32 is mounted with the mounting holes 58, 60 and the positioning holes 62, 64 as mounting portions. There is.

More specifically, the positioning hole 6 as shown in FIG.
The ridges 56 and 60 on the back surface of the middle portion of the guide rail are inserted into 2 and 64, respectively, and the ridges 48 and 54 on the back surface of both ends of the guide rail are inserted into the respective mounting holes 58 and 60 together with the adjacent tongue pieces 38 and 40. Has been done. Positioning holes 62, 64 and mounting holes 58,
The ridge 60 receives the respective ridges 48, 50, 52, 54 and the tongues 38, 40 inwardly so as not to project to the back side of the side plate 56. That is, the recess depths of the recesses 42, 44, 46 of the guide rail 32 are set to be the same as or slightly smaller than the plate thickness of the side plate 56, and the positioning holes 62, 64 and the mounting holes 58, 60 are respectively provided. The ridges 48, 50, 52, 54 and the tongues 38, 40 are received so as not to project to the back side of the side plate 56.

The positioning holes 62 and 64 have a hole diameter set to be approximately the same as the outer diameters of the raised portions 50 and 52, and are fitted to the raised portions 50 and 52, so that the guide rails
It is for 32 positioning.

In the peripheral portions of the positioning holes 62, 64 and the mounting holes 58, 60,
The receiving pieces 66, 68, 70, 72 are formed by cutting and raising them at right angles inside the side plate 56, and these are provided on the upper and lower sides in parallel so as to face each other and sandwich the guide rail 32 therebetween (see FIG. 4). When a vertical force or a twisting force acts on the guide rail 32, the guide rail 32 is held against this force. Between the upper and lower receiving pieces 66, 68, 70, 72, the positioning holes 62, 64 and the mounting holes 58, 60 are provided with raised portions 48, 50, 52,
The guide rail is used when inserting the 54 and tongue pieces 38, 40.
32 is to be plugged.

In addition, mounting claws 74 and 76 are provided on the peripheral portions of the mounting holes 58 and 60.
Cut and raised inside 56, these mounting claws 74, 76
Is projected inside each hole and the tongue piece 3 of the guide rail 32 is
It is a retainer for 8 and 40. That is, the mounting claws 74, 7
The tongues 38 and 40 of the guide rail 32 are arranged on the back side of 6 so that the tongues 38 and 40 of the guide rail 32 do not come off from the mounting holes 58 and 60. The mounting claws 74 and 76 are mounted in the mounting holes 58 and 60.
Two of them are provided at the upper and lower edges at predetermined intervals.

Next, a procedure for mounting the guide rail 32 will be described.

The guide rail 32 is curved to the back side (in the direction of arrow A in FIG. 1), the tongue pieces 38, 40 are passed between the mounting claws 74, 76, and the mounting holes 58, 60 are provided.
When the guide rail 32 is restored to its original shape in this state, the attachment state shown in FIGS. 3 and 4 is obtained. That is, by restoring the shape of the guide rail 32, the tongues 38 and 40 are inserted into the mounting holes 58 and 60 together with the raised portions 48 and 54, and the raised portions 50 and 52 are inserted into the positioning holes 62 and 64.

When the guide rail 32 is attached, the protrusions 48, 50, 52, 54 and the tongues 38, 40 are received in the attachment holes 58, 60 and the positioning holes 62, 64 so as not to project to the back side of the side plate 56. Further, the raised portions 40, 52 are fitted into the positioning holes 62, 64 to ensure the positioning of the guide rail 32, and the mounting claws 74, 76 prevent the tongues 38, 40 from coming off, and the guide rail 32 serves as a side plate. It is locked to 56 without separating. Further, the guide rail 32 is sandwiched between the receiving pieces 66, 68, 70, 72 on the upper and lower sides to exert a prying force on the guide rail 32 when the printed circuit board 34 is attached or detached, or the printed circuit board 34 is a heavy object. Even in the case, the guide rail 32 can be reliably held.

Therefore, the guide rail 32 can be securely attached to the frame 30 without generating a useless space on the back side of the frame 30, which is advantageous for downsizing the entire device.

In the above embodiment, the positioning holes 62, 64 are formed in the side plate 56 of the frame 30, but a recess is formed in the side plate 56 of the frame 30, and the raised portions 50, 52 of the guide rail 32 are fitted in the recess. Alternatively, the guide rail 32 may be positioned.
The guide rail 32 may be positioned by forming a convex portion on the side plate 56 of the frame 30 and forming a concave portion on the guide rail 32 that fits the convex portion.

Further, in the above embodiment, the mounting holes 5 are formed in the side plates 56 of the frame 30.
8 and 60 are formed, but a recess may be formed in the side plate 56 of the frame 30 to receive the tongues 38 and 40 together with the ridges 48 and 50.

Further, in the above embodiment, the guide rail 32 is connected to the printed circuit board.
Although the example used for mounting 34 has been described, it is of course applicable to other plate-shaped bodies such as a pachi card.

[Effects of the Invention] As described above, in the mounting structure of the guide rail for a plate-shaped body according to the present invention, an unnecessary space is not created on the back side of the mounting member, which is advantageous for downsizing the entire device. Have.

[Brief description of drawings]

1 to 4 show an embodiment of a mounting structure of a guide rail for a plate-shaped body according to the present invention, and FIG.
The figure is a perspective view of the guide rail seen from the rear side, Fig. 3 is a perspective view showing the guide rail mounting state, Fig. 4 is a front view of the guide rail mounting state, and Fig. 5 is a conventional guide rail mounting structure. FIG. 30 …… Frame (mounting member), 32 …… Guide rail, 34
…… Printed circuit board (plate), 36 …… Guide groove, 38, 40
...... Tongue pieces, 50, 52 ...... Protrusions (positioning projections), 58, 60
…… Mounting holes (mounting recesses), 62, 64 …… Positioning holes (positioning recesses), 66, 68, 70,72 …… Receiving pieces (receiving parts), 74,
76 ... Mounting claw.

Claims (2)

[Scope of utility model registration request] 1. A guide rail having a guide groove into which a plate-like body is slidably inserted, and a mounting member for the guide rail. A positioning recess is formed in one of the mounting member and the guide rail, and the other is formed. Positioning protrusions that fit into the positioning recesses are formed on the guide rails, and tongue pieces extending in the longitudinal direction are formed on both ends of the guide rail. A mounting structure for a guide rail for a plate-shaped body, comprising: a mounting recess for accommodating a piece; and a mounting claw protruding inside the mounting recess to prevent the tongue from coming off. 2. The mounting structure for a plate-shaped guide rail according to claim 1, wherein a receiving portion for holding the guide rail is formed on an inner surface of the mounting member.