JP2758792B2 - Single unit guide for unit base - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit base for slidingly guiding and holding both upper and lower ends of a unit base mounted in a general communication device housing so as to be vertically opposed to each other and mounted in the communication device housing. Related to the structure of a single guide.

[0002]

2. Description of the Related Art Conventionally, as a single unit guide for a unit board of this type, as shown in FIG. As elements, the holes 7 provided in the two cross beams 21 and the unit guide 11 for the unit base
There is a structure in which an arbitrary number of press-fit pins 6 provided on the back side are provided with a positional accuracy. Many of the unit guides 11 have flexibility in terms of ease of assembly work.

[0003]

The above-mentioned conventional single guide for unit base is one of the factors for improving the fitting accuracy of the unit base to the back wiring board. The position accuracy is provided by an arbitrary number of press-fit pins provided in the above. However, this method has the disadvantage that the number of components is large, the variation in fitting accuracy is large, which causes poor fitting, and the dimensional tolerance of components related to fitting accuracy needs to be strict.

[0004]

SUMMARY OF THE INVENTION The present invention provides a long rail shape.
Before being mounted facing each other up and down in the communication device housing
Upper and lower ends of the unit board mounted in the communication device housing
Are respectively slidably guided and held in the guide grooves, and the flexible portions
In the unit base unit guide made of a material,
On the back side and front side of the guide groove for slidingly guiding the knit base
A press-fit pin provided near the insertion start end of the unit base;
One end opposite to the insertion start end in the same direction as the guide groove
A projection provided to project from the press-fit pin and the
The communication device is mounted inside the communication device housing with the protrusion.
The portion where the projection is mounted is located on the unit base.
The communication device having a mating connector to which the board is fitted and connected.
A part of the housing and suitable for the mating connector
It is assumed that the part is located.

[0005]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention.

In the present embodiment, the unitary guides 1 in the form of longitudinal rails, which are vertically opposed to each other for slidingly guiding the unit base 5, are made of a flexible member, and are provided in the sliding guide grooves 1a. Back side and unit base 5
A downward press-fit pin 6 is provided on the insertion start end side, and a projection 9 projecting in the same direction as the sliding guide groove 1a is provided on one end opposite to the insertion start end. In the back wiring board 3 to which the mating connector 4 to which the connector 10 of the unit base 5 is fitted and connected is attached, a through-hole 8 for mounting the projection 9 is formed. Is a position precisely dimensioned with respect to the mounting position of the connector 4. It is assumed that such a single unit guide 1 is attached to the apparatus housing by using the press-fit pin 6 and the projection 9.

Next, the mounting condition of the embodiment will be described.
The upper and lower unit guides 1 having the sliding guide grooves 1a of the unit base 5 are mounted by pressing the press-fit pins 6 into the holes 7 provided in the side beams 2 in the front side beams 2 of the apparatus housing. The projection 9 on the rear end side of the guide 1 is connected to the back wiring board 3
Is inserted into the through-hole 8 provided in the above. In the sliding guide groove 1a of the unitary guide 1 mounted on the apparatus housing in this manner,
The unit base 5 is slid and inserted, and the connector 10 of the unit base 5 is connected to the connector 4 of the back wiring board 3. At this time, since the protrusion 9 of the unitary guide 1 and the connector 4 are accurately positioned with respect to each other on the same back wiring board 3, the connectors can be connected with high fitting accuracy. Further, since the unitary guide 1 bends in the longitudinal direction due to its flexibility, it is convenient to insert the protrusion 9 into the through hole 8 after the press-fit pin is attached to the hole 7.

[0008]

As described above, according to the unit board unit guide of the present invention, in order to increase the fitting accuracy when the unit board is inserted and connected to the connector of the back wiring board, the unit is mounted on the back wiring board. Providing a hole through which the protrusion of the unit guide can penetrate, and setting the hole position to an appropriate position with respect to the connector of the back wiring board, without having to tighten the dimensional tolerance of other related parts,
The rear end of the unit single guide made of a flexible member can be mounted at a correct position. Accordingly, the number of components can be reduced, and the fitting accuracy of the connector of the unit base and the connector of the back wiring board can be easily obtained,
Also, there is an effect that the accuracy and cost of other related parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of a unit base unit guide of the present invention.

FIG. 2 is a perspective view of an example of a conventional unit base unit guide.

[Explanation of symbols]

 1,11 Single guide 1a Sliding guide groove 2,21 Cross beam 3,31 Back wiring board 4 Connector 5 Unit base 6 Press-fit pin 7 Hole 8 Through hole 9 Projection 10 Connector

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 7/14

Claims (1)

(57) [Claims] An upper and lower end of a unit base, which has a longitudinal rail shape and is vertically mounted in a communication device housing so as to face each other and is mounted in the communication device housing, is slidably guided and held in a guide groove. And a press-fit pin provided on the back surface side of the guide groove for slidingly guiding the unit base and near the insertion start end of the unit base, wherein the press-fit pin is opposite to the insertion start end. A protrusion protruding in the same direction as the guide groove at one end of the communication device , wherein the protrusion is mounted in the communication device housing by the press-fit pin and the protrusion.
The part to be connected is
A part of the communication device housing to which the connector is attached; and
A part appropriately positioned with respect to the mating connector.
Single guiding unit basis, characterized in that that.