JP2923887B2 - Variable height PWB holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable height PWB holder having a variable mounting height.

[0002]

2. Description of the Related Art Conventionally, the mounting height of a PWB holder is generally changed by selectively using spacers having different dimensions. 8 to 10 are views showing the structure of the PWB holder of the first conventional example. 8 is a side view of each component, FIG. 9 is a side view in an assembled state, and FIG. 10 is a cross-sectional view taken along the line CC of FIG.

FIGS. 8 to 10 show a PWB of the first conventional example.
The holder is composed of three parts: a printed board mounting part 60, a foot part 61, and a spacer 62. For these three components, the printed board mounting portion 60 or the spacer 62 is fixed to the foot portion 61 by means of claws and hooks. The height dimension H2 between the chassis mounting surface and the substrate mounting surface in this fixed state is fixed. Therefore, several types of spacers having different heights H2 are prepared.

A "printed circuit board holding device" disclosed in Japanese Patent Application Laid-Open No. 61-256796 of the prior art 2 has a support vertically supported by a chassis, and engages with the support and slides vertically relative thereto. And a slide holder having a function of stopping. Further, a socket is attached to the board, and the socket and the slide holder are connected by another board.

Further, as a technique similar to the present invention, there is an "electronic component holder" disclosed in Japanese Utility Model Laid-Open No. 6-72300 of prior art 3. The electronic component holder of the third conventional example is provided with a component holding portion for holding an electronic component, a board contact surface that contacts a printed board, and a positioning projection that is pressed into a positioning hole of the printed board. With this configuration, for example, an object is to prevent an electronic component such as a transistor from being mounted in a state where a so-called “middle bra” is lifted from a printed circuit board.

[0006]

However, the PWB holders of the above-mentioned prior art examples 1 and 2 have a large number of parts and require spacers of respective heights. Therefore, a lot of mold cost is required. In addition, an increase in the number of parts also has a negative effect on management. In addition, the mounting height of the printed board is regulated for each manufacturer, and it is impossible for a designer to make fine selections. In addition, when the height is changed after one round of the study, there is a problem that the appropriate holder is not easily provided.

SUMMARY OF THE INVENTION An object of the present invention is to provide a variable height PWB holder which can fix a printed board mounting portion at a free height and can be accommodated in a single mold.

[0008]

In order to achieve the above object, a variable height PWM holder according to the present invention has a columnar body in which one side is fixed to a holding body such as a chassis and the other side is formed in a cylindrical shape. The foot, a printed board mounting portion in which one side of the columnar body is fixed to a predetermined printed board, and the other side is inserted into a cylindrical forming portion of the foot, and is variably connected to the height ,
Connect the printed board mounting part to form an integrated type, and
Arbitrarily variable relative angle with printed board mounting part
With flexible connecting band, feet and printed board
One holder is composed of the combination of the mounting part and the connecting band
The fixing height of the printed board to the holding body is made variable by at least two of the holders.

Further, the above variable height PWM holder is
A slide groove and at least two through-holes are formed at predetermined intervals along the slide groove inside the cylindrical forming portion of the foot portion, and the slide groove is formed in the columnar body on the other side of the printed board mounting portion. A spring portion that fits with a pressing force is formed, and a protrusion that is a tip portion of the spring portion and can be fitted with the through hole is provided. By selectively fitting the protrusion with any of the through holes, a printed board is formed. It is preferable to make the fixing height of the holding member variable.

[0010] Further, a tuft configured to be able to contract the outer shape by a side pressure is formed at each of the distal ends of the pillar on one side of the foot and the pillar on one side of the printed board mounting portion. The tuft preferably allows connection and fixation between the holder and a predetermined printed board.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a variable height PWB holder according to the present invention will be described in detail with reference to the accompanying drawings. 1 to 7 show one embodiment of the variable height PWB holder of the present invention. These FIGS. 1 to 5
Shows a first embodiment, and FIGS. 6 and 7 show a second embodiment.

<First Embodiment> In FIGS. 1 to 5 showing the first embodiment, FIG. 1 is a perspective view for explaining the overall configuration and functions. 2 is a side view, FIGS. 3 and 4 are explanatory views of an assembling procedure, and FIG. 5 is a sectional view taken along the line AA in FIG.

The PWB holder according to the first embodiment includes a printed board mounting portion 10, a foot portion 20, and a connecting band 30. A connecting band 30 connects and integrates the printed board mounting portion 10 and the foot portion 20 to form an entirety. The printed board mounting portion 10, the foot portion 20, and the connecting band 30 are formed by integral molding.

The printed board mounting portion 10 of each of the above-mentioned components has spring portions 11, 11 on predetermined side surfaces of the outer peripheral portion of the cylindrical main body 10a, and stoppers 12, 11 at the tip portions of the spring portions 11, 11, respectively. 12 are provided. Further, a tuft 13 configured to be able to contract the outer shape by a side pressure is provided at the other end of the cylindrical main body 10a where the spring 11 is formed.
Is configured. The two stoppers 1 on both side surfaces
2 and 12 are configured at the same height position. In addition, the shape of the stoppers 12 and 12 is a protrusion, and more specifically,
For example, the shape is a semicircle, a teat shape, or the like.

The foot portion 20 includes spring sliding grooves 22, 22 formed in the inner surface of the cylindrical foot body 20 a in the longitudinal direction of the cylindrical body with grooves having a predetermined width and depth. A plurality of stopper holes 21,..., 21 which are a plurality of through holes are formed at predetermined intervals in the center of the spring portion sliding grooves 22, 22 in a row. In addition, a tuft 2 configured to be able to contract the outer shape by a side pressure is provided at one end of the foot main body 20a.
3 and 23 are configured.

The two spring sliding grooves 22, 22 formed on the inner surface of the cylindrical body are opposed to each other at the center of the cylinder, and further, the respective spring sliding grooves 22, 22 are provided.
, 21 are formed such that two opposing holes are at the same height position. Note that, as a variation example, this configuration is different from “the two opposing holes have the same height position” (referred to as a configuration example A), and “the height position where the two opposing holes are alternately different”. (Structural example B).

In the relationship between the printed board mounting section 10 and the foot section 20, the tubular main body 10a of the printed board mounting section 10 can be inserted into the cylinder of the foot section main body 20a. In this insertion, the spring portions 11, 11 are engaged with the spring portion sliding grooves 22, 22 in a state where the springs are pressed and compressed, and the spring portion sliding grooves 22, 22, guide the spring portions 11, 11. With the printed board mounting part 10 inserted into the foot part 20, the printed board mounting part 10 is slidable.

In the above-described slide movement state, the stopper 12 is moved by the extension
1, the slide movement is regulated, and the position of the printed board mounting portion 20 with respect to the foot portion 20 is fixed. This position corresponds to the stopper holes 21 to be fitted by the stopper 12,.
The selection can be made by selecting 21 sites.
FIGS. 4 and 5 show a state in which the position of the printed board attaching portion 20 with respect to the foot portion 20 is fixed. Symbol H1 in FIG.
Represents the distance between the chassis mounting surface and the mounting surface of the printed board 50.

In the above fixing, in the case of the above configuration example A, the left and right stoppers 12, 12 are simultaneously fitted into the two stopper holes 21, 21. Further, in the case of the configuration example B, the left and right stoppers 12 are provided with two stopper holes 2.
The pieces are alternately fitted one by one with the slide position movement to 1, 21. Therefore, in the configuration example B, the fixed position interval H1 can be doubled, that is, the adjustment position H1 can be set twice as fine as the configuration example A.

In the present embodiment, the two-stage configuration example (a) and (b) is used. However, three or four spring sliding grooves 22 formed on the inner surface of the cylindrical body are used. Alternatively, if there are four stages, the adjustment position H1 can be tripled or quadrupled.

The connecting band 30 is a flexible band which can be bent and bent. When used as a variable PWB holder, the tufts 13 and 23 are inserted and attached to predetermined through holes provided in a printed circuit board, a chassis, or the like. In this mounting state, a spring structure is formed at both ends of the connection band 30 so that the mounted body such as a printed circuit board or a chassis and the variable PWB holder are stably fixed.

The dotted arrow in FIG. 1 turns the foot 20 connected by the flexible connecting band 30 by 180 degrees.
FIG. 3 conceptually illustrates a state in which the tubular main body 10a of the printed board mounting portion 10 can be inserted into the cylindrical body of the foot main body 20a. FIG. 3 shows the cylindrical main body 1 of the printed board mounting portion 10.
0a is an enlarged view showing a state before the foot 20 is inserted into the tubular main body 10a of the foot 20. Further, FIG.
The printed board mounting portion 10 is inserted into the slide groove 22 of the foot portion 20 and is fixed at an arbitrary height by the stopper 12 and the stopper hole 21. FIG.
FIG. 5 is a cross-sectional view taken along line AA in FIG. 4 and shows a state where the stopper 12 is fitted into the stopper hole 21.

<Second Embodiment> A second embodiment in which a part of the present invention is changed in shape will be described with reference to FIG. 6 and FIG. The difference between the second embodiment and the first embodiment is that the spring portion 11 of the first embodiment is different from the first embodiment.
In the hinge portion 41. Stopper 40,
Numeral 40 is provided at the tip of the left and right hinges 41,41. Also in the present embodiment, position fixing for fixing is performed by:
This is a concept utilizing the action of a spring, and these stoppers 40, 40 are used for positioning in the height direction.

According to each of the above embodiments, one mold is sufficient to form the holder. One holder can support various heights, and the mounting height of the printed board can be freely and finely selected. In addition, since it can be used for many types, it is convenient for a maker of a holder and a home appliance maker to use in parts procurement and material management. In addition, ease of design and reduction of die costs are achieved. In the material management (reduction of the number of parts) of the holder production factory and the maker used, the management becomes easy.

Although the above-described embodiment is an example of a preferred embodiment of the present invention, the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention.

[0026]

As is apparent from the above description, the variable height PWB holder of the present invention has a foot fixed to a holder such as a chassis and a printed board mounting part fixed to a printed board. The fixing height of the printed board to the holder is made variable by at least two of the holders. Therefore, the printed board mounting height can be selected arbitrarily finely by one holder by the slide type structure of the printed board mounting portion. In addition, since one holder can be used for holders of various heights, die costs and factory management are reduced.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a first embodiment of a variable height PWB holder according to the present invention.

FIG. 2 is a side view of the first embodiment.

FIG. 3 is an explanatory diagram of an assembling procedure.

FIG. 4 is an explanatory diagram of an assembling procedure.

FIG. 5 is a detailed sectional view taken along line AA of FIG. 4;

FIG. 6 is a diagram illustrating a configuration example of a second embodiment, and is a side view of a printed board mounting portion.

FIG. 7 is a sectional view taken along line BB of FIG. 6;

FIG. 8 is a side view of components for explaining Conventional Example 1.

FIG. 9 is a side view showing an assembled state of Conventional Example 1.

FIG. 10 is a sectional view taken along line CC in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Print board attachment part 10a Cylindrical main body 11 Spring part 12 Stopper part 13, 23 Tuft part 20 Foot part 20a Foot part main body 21 Stopper hole 22 Spring part slide groove 30 Connection band 40 Stopper 41 Hinge part 50 Print board

Claims (3)

(57) [Claims] 1. One side of a columnar body is fixed to a holding body such as a chassis, the other side is formed into a cylindrical foot, and one side of the columnar body is fixed to a predetermined printed board, and the other side is fixed to a predetermined printed board. A printed board mounting portion that is inserted into the cylindrical forming portion of the foot portion and is variably connected to the height, and the foot portion and the printed board mounting portion are connected to form an integrated type.
And the relative position between the foot portion and the printed board mounting portion.
Flexible connecting band with variable angle
Having the foot portion, the printed board mounting portion, and the connection band.
A height variable PWB holder , wherein one holder is constituted by the combination, and a fixing height of the printed board to the holder is made variable by at least two of the holders. 2. A slide groove and at least two through holes formed at predetermined intervals along the slide groove inside the cylindrical forming portion of the foot portion, and the other side of the printed board mounting portion. A spring portion that fits with the slide groove with a pressing force is formed on the columnar body, and a protrusion that is a tip portion of the spring portion and that can be fitted with the through hole is provided, and any one of the protrusion and the through hole is provided. 2. The variable height PWB holder according to claim 1, wherein a fixed height of the printed board with respect to the holder is made variable by selective fitting of a heel. 3. A tuft configured to be able to shrink the outer shape by a side pressure is provided at a tip of each of the pillar on one side of the foot and the pillar on one side of the printed board mounting portion. The height variable PWB holder according to claim 1 or 2, wherein the tuft portion enables connection and fixation of the holding body and the predetermined printed board.