JPH0241915Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is an inspection device that is mounted on the base of an inspection device and protrudes from the base in order to inspect the circuit operation of a mounted printed circuit board. This invention relates to a device for supporting a printed circuit board that is horizontally inserted and set into a pin member from above.

[Conventional technology]

Although this type of conventional technology is not particularly illustrated, a hook member is provided movably protruding through the base of the inspection device vertically, and this hook member is resiliently supported on the underside of the base, so that the hook A structure in which a member locks and supports the outer peripheral edge of a mounted printed circuit board set horizontally has been common.

[Problem that the invention attempts to solve]

However, in this conventional structure, a plurality of square or round elongated holes must be formed through the base, and hook members made of hard resin must be inserted and held into each of these through holes, which requires processing, assembly, etc. Not only is this not easy, but since the position of the hook member is fixed, there are drawbacks such as the inability to handle different widths and dimensions of the printed circuit board to be inspected.

The present invention has been made to solve these conventional drawbacks.

Therefore, the purpose of the present invention is to provide a device that is easy to process and assemble by simply screwing it on without requiring any processing such as through-holes on the base, and to adjust its installation position on the base. It is an object of the present invention to provide a support device which can sufficiently cope with different widths and dimensions of printed circuit boards to be inspected.

[Means for Solving the Problems] For this purpose, the present invention provides a structure that stands adjustable in position on a base 33 on which a pin member 32 for inspecting the circuit operation of a mounted printed circuit board 31 is protruded. A first member 1 to be installed and a space to be inspected that is fixed to a space 17 with a front opening formed between the first member 1 and pushed horizontally into the upper edge of the opening of the space 17 from above. Outer periphery 31 of mounted printed circuit board 31
a, which has an oblique guide plate portion 12 that guides the
member 8, and a guide plate portion 1 on the back side of the first member 1.
3 for releasing support for the mounted printed circuit board 31 to be inspected attached by extending its upper end beyond that of 2;
A screw rod 28 is loosely inserted into the member 18 and the cavity 17 from the third member 18 side through a matching hole between the hole 23 of the third member 18 and the hole 15 of the second member 8.
A structure comprising a movable member 25 which is coupled to the movable member 25 and whose distal end inclined surface portion 26 protrudes and retracts from the cavity 17 as the third member 18 is movable to support and release the mounted printed circuit board 31 to be inspected. It is characterized by:

[Effect]

The support device according to the present invention includes a mounting printed circuit board 3
1 is erected on a base 33 on which a pin member 32 for inspecting circuit operation is protruded, with the elongated hole 5 inserted into the protruding bolt 34 and fastened with a nut 35. Fixed. When the printed circuit board 31 to be inspected is dropped horizontally between the devices from above, the outer peripheral edge 31a of the printed circuit board 31 is guided by the diagonal guide plate section 12, and the outer peripheral edge 31a is dropped into the empty space. The movable member 25 is pushed backward while touching the inclined surface portion 26 of the movable member 25 protruding from the movable member 17 and dropped into the movable member 25, and its lower surface is locked by the locking plate portion 14 (see FIG. 3). Then, the movable element 25 returns to its original state due to the restoring force of the spring 30 and locks the upper surface of the printed circuit board 31 with the lower end surface of the inclined surface portion 26 protruding from the space 17, thereby horizontally supporting the printed circuit board 31. Retain state.

Further, in the case of a device without the locking plate portion 14, as shown in FIG. 6, the movable member 25 is locked and supported by the lower end surface of the inclined surface portion 26.

Therefore, the mounted printed circuit board 31 to be inspected is horizontally supported with its upper surface being stopped by the lower end surface of the inclined surface portion 26 of the movable element 25 which is loaded with bullets, without warping or the like. Therefore, the electrical contact between the inspection pin member 32 and the printed circuit board 31 is very good, and the circuit inspection can be performed reliably and efficiently.

To complete the inspection and remove the printed circuit board 31, as shown in FIG.
The mover 25 retreats through the retreat of the threaded rod 28 in conjunction with this, and the upper surface of the outer peripheral edge 31a of the printed circuit board 31 is released from being locked by the lower end of the inclined surface portion 26. In this state, the printed circuit board 31 Just take it out upwards.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is an exploded perspective view, Figure 2 is a perspective view of the assembled state, Figure 3 is a side view of the mounted printed circuit board in the supported state, Figure 4 is a partially cutaway sectional view of the same, and Figure 5 is the mounted printed circuit board. FIG. 6 is a partially cutaway cross-sectional view showing a state in which the substrate is released from support, and FIG. 6 is a side view showing another example of the present invention.
Broadly speaking, the present device preferably includes a first member, a second member, and a third member made of metal, and a movable element made of hard resin such as acrylic resin.

The first member 1 includes a pair of substantially vertically rectangular side plate portions 2 which are bent at a predetermined interval and are opposed to each other.
A pair of rectangular attachment plates 3 are bent horizontally on the outside of the lower ends of the side plates 2, and the entire middle lower part of the left and right side plates 2 is connected to the front sides of the left and right side plates 2, 2. In addition to having a connecting plate part 4, a pair of elongated holes 5 for screwing are provided in the central part of the pair of attachment plate parts 3.
A pair of protruding tongue pieces 6 for caulking are integrally provided at the center of the upper end of both side plate parts 2, and a vertical edge on the back side of both side plate parts 2 is provided. is provided with a pair of intermediate step portions 7, and the upper half portions of both side plate portions 2 are formed slightly narrower via the step portions 7, and a second member to be described later is engaged with the step portions 7. The end faces of the first member and the second member are made to match.

The second member 8 includes a bottom plate portion 9, a back plate portion 10 formed by bending one end of the bottom plate portion 9 upward at a substantially right angle;
A top plate part 11 is formed by bending the end of the back plate part 10 parallel to the bottom plate part 9 in the same direction, and the end of the top plate part 11 is bent upward at a substantially right angle and the end is bent slightly outward. A diagonal guide plate portion 1 formed by bending at an angle of
2, a vertical plate part 13 formed by bending the other end of the bottom plate part 9 downward at a substantially right angle, and a locking plate part 14 formed by bending the end of this vertical plate part 13 outward horizontally,
A hole 15 is provided through the central portion of the back plate portion 10, and a pair of approximately U-shaped notches are provided at portions of the top plate portion 11 corresponding to the pair of protruding tongue portions 6 in the first member 1. 16 is cut out. The lengths of the bottom plate part 9 and the top plate part 11 almost match the width of the side plate part 2, the width of the bottom plate part 9 almost matches the width between the inner surfaces of the side plate parts 2, 2, and the length of the top plate part The width of the back plate 11 almost matches the width between the outer surfaces of the side plates 2, 2, and the length of the back plate 10 corresponds to the width of the step 7 of the side plate 2.
In addition, the position of the locking plate portion 14, in other words, the length of the vertical plate portion 13 is approximately equal to the length from The length is set so that it can be effectively locked on the lower surface.

In this second member, the bottom plate part 9 is inserted horizontally between the both side plate parts 2, 2 from above, and the back plate part 10 is locked to the step parts 7, so that the opening thereof is closed. The top plate part 11 closes the upper surface openings of both side plate parts 2, 2, and the top plate part 11 and the back plate part 1 are closed.
0. A front opening space 17 is formed and incorporated in the side plate parts 2, 2 and the bottom plate part 9, and the protruding tongue pieces 9, 9 that match the notches 16, 16 in the top plate part 11 are caulked. It has been fixed.

The third member 18 includes a vertical plate part 19, a slightly narrow locking plate part 20 bent at a substantially right angle to the lower end of the vertical plate part 19, and a lower end of the locking plate part 20 on both sides of the vertical plate part 19. A narrow side plate part 21 is formed by bending over a part of the first member 1 that matches the height of the side plate part 2, and a vertical plate part 19 located above this side plate part 21 is bent slightly outward. The second member 8 in the vertical plate part 19 is integrally formed with the diagonal plate parts 22 bent in the direction.
A slightly elongated hole 23 that communicates with the hole 15 is provided at a portion that matches the hole 15 , and a hole 24 is provided in the diagonal plate portion 22 .

Note that the hole 24 is a hole for attaching a connecting rod screw, which is used to connect the devices of the present invention to each other via a connecting rod when they are installed side by side, and is not essential.

The third member 18 is disposed on the back side of the first member 1 and the second member 8.

The mover 25 has a trapezoidal block shape with an inclined surface 26, and a screw hole 27 is provided in the axial direction of the end surface opposite to the inclined surface portion 26.
is placed in the space 17 so that it can appear and appear.

That is, the hole 23 is opened from the outside of the third member 18.
A screw rod 28 is loosely inserted into the cavity 17 through a matching hole with the hole 15 of the second member 8, and a sleeve 29 which is slightly shorter than the screw rod 28 is inserted outside the screw rod 28. A coil spring 30 is externally inserted into this sleeve 29 and is elastically connected to the screw hole 27 at the tip of the screw rod 28 protruding from the sleeve 29, and is connected to the diagonal plate portion of the third member 18. By pressing 22 backward, the movable element 25 retreats within the space 17, and when the pressure is released, the movable element 25 returns to its original position due to the restoring force of the coil spring 30.

Note that the movable element 25 is normally in a state in which the inclined surface part 26 thereof protrudes from the inside of the space 17, and when the diagonal plate part 22 of the third member 18 is pressed backward as much as possible, the inclined surface part of the movable element 25 The bottom end of 26 is empty space 17
It is set to sink inside.

The device of the present invention having the above configuration includes a pin member 32 for inspecting the circuit operation of the mounted printed circuit board 31.
The device is mounted on a resin base 33 on which a bolt 34 is protrudingly provided, and is fastened and fixed with a nut 35 with the elongated hole 5 inserted into the bolt 34 that is protrudingly fixed. In addition, in the above-mentioned illustrated device of the present invention, one device is shown for the sake of simplicity and clarity, but this device is specifically shown on the base 3.
When applied to No. 3, a plurality of devices are installed.

In addition, for different widths and dimensions of the printed circuit board to be inspected, loosen the nut 35 and adjust its mounting position within the range of the elongated hole 5 to install the device.

Then, when the mounted printed circuit board 31 to be inspected is dropped horizontally from above, the outer peripheral edge 31a of the printed circuit board 31 is guided by the oblique guide plate section 12,
and the protruding inclined surface portion 26 of the movable element 25
While moving along, it presses backwards and falls down.
Its lower surface is locked by the locking plate part 14, and its upper surface is held by the spring 30 when the pressure is released.
The movable member 25 is locked by the lower end surface of the inclined surface portion 26 which has returned to its original state due to the elasticity of the movable member 25 .
Electrical contact for circuit inspection with 1 is maintained well.

To complete the inspection and remove the printed circuit board 31, press the diagonal plate part 22 of each device of the present invention backward (or press it in conjunction with the pressure of the connecting rod, although not shown), and then remove the third member. 18, the mover 25 moves back through the retreat of the threaded rod 28 in conjunction with this movement, and the upper surface of the printed circuit board 31 is released from the lower end of the inclined surface portion 26. It is sufficient to take out the substrate 31 upward.

It is possible to modify the device according to the present invention, for example, as shown in FIG. 6 (the same reference numerals as in FIG. 3 indicate the same parts), the second member 8 may have a structure in which the locking plate portion 14 is eliminated. It is possible. In short, the scope of the present invention is not limited to the above-mentioned embodiments, but extends to all the claims of the utility model registration.

[Effect of idea]

Therefore, according to the present invention, mounting on the base can be easily performed by adjusting the position of the bolt protruding from the base by inserting the long mounting hole into the mounting hole and tightening with the nut. Since it does not require any machining such as holes for hook insertion in the base as in the conventional case, it is easy to process and assemble, which greatly contributes to cost reduction. It can sufficiently accommodate different widths and dimensions.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is an exploded perspective view, Fig. 2 is a perspective view of an assembled state, Fig. 3 is a side view of a mounted printed circuit board supported state, and Fig. 4 is the same as the above. FIG. 5 is a partially cutaway sectional view showing a mounted printed circuit board in a state where support is released, and FIG. 6 is a side view showing another example of the present invention. DESCRIPTION OF SYMBOLS 1... First member, 2... Side plate part, 3... Mounting plate part, 4... Connection plate part, 5... Long hole, 8... Second member, 9... Bottom plate part, 10... Back plate part, 11... Top plate part, 12... Oblique guide plate part, 14... Locking plate part, 15... Hole, 17... Hole, 18... Third member, 19... Vertical plate part, 21...Side plate part, 22...
... Oblique plate portion, 23 ... Hole, 25 ... Mover, 2
6... Inclined surface portion, 28... Screw rod, 29... Sleeve, 30... Coil spring, 31... Mounting printed circuit board to be inspected, 31a... Outer periphery, 32...
...Inspection pin member, 33...Base, 34...Bolt, 35...Nut.

Claims (1)

[Claims for Utility Model Registration] 1. A first member that is erected so as to be adjustable in position on a base from which a pin member for inspecting the circuit operation of a mounted printed circuit board is protruded; It is fixed by forming a space with a front opening between the
and a second member having an oblique guide plate portion on the upper edge of the opening of the space to guide the outer peripheral edge of the mounted printed circuit board to be inspected that is horizontally pushed in from above; a third member whose upper end extends beyond the guide plate portion for releasing the support of the mounted printed circuit board to be inspected; and a hole in the third member from the third member side within the space; The mounted printed circuit board to be inspected is elastically connected to a screw rod that is loosely inserted through a hole that matches the hole of the second member, and as the third member moves, the tip inclined surface portion of the third member protrudes and retracts from the cavity. A support device for inspecting a mounted printed circuit board, comprising a movable element that supports and releases the lock. 2. The mounting according to claim 1, wherein a locking plate portion is provided at an appropriate lower part of the lower edge of the opening of the void space to lock the lower surface of the outer peripheral edge of the inserted printed circuit board to be inspected. Support device for printed circuit board inspection.