JPH0518079U - Printed board pull-out tool with pull-out prevention function - Google Patents

Abstract

(57) [Summary] [Purpose] Makes the extraction tool have both the extraction function and the removal prevention function. [Structure] A casing 1 in which a cutout portion 1C through which a printed board 2 comes in and out is formed at an end portion 1B, and a hole 1A is opened near the cutout portion 1C, and a case 1 is bent and fixed to the printed board 2. And a pulling tool 4, which is rotatably held in the mounting bracket 3, the protrusion 4A contacts the inside of the end 1B of the housing 1, and the protrusion 4B contacts the outside of the end 1B. A torsion coil spring 5 that is in contact with the extractor 4 and the other end is in contact with the mounting bracket 3, and is rotatably held in the mounting bracket 3,
The hole 6 has a stopper 6 into which the projection 6A moves in and out, and a torsion coil spring 7 having one end in contact with the stopper 6 and the other end in contact with the mounting member 3.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 When inserting the printed board into the connector attached to the housing and removing this printed board from the connector, rotate the extraction tool attached to the printed board to pull out the printed board from the connector. This invention relates to this pulling tool, and when a large number of printed boards are attached to the housing, it is a printed board pulling tool with a pull-out prevention function that allows individual printed boards to be easily attached and detached from the housing. Is about.

[0002]

[Prior Art]

 Next, the structure of a conventional printed board extractor will be described with reference to FIG. In FIG. 9, 11 is a housing, 12 is a printed board, 13 is a pull-out tool, 14 is a pull-out prevention plate, and 15 is a connector. In FIG. 9, the printed board 12 is inserted into the connector 15 attached to the housing 11. A pull-out tool 13 is attached to the printed board 12 on the side opposite to the connector 15. The pull-out tool 13 is pressed by the pull-out prevention plate 14 attached to the housing 11.

Next, a partial perspective view of FIG. 9 will be described with reference to FIG. In FIG. 10, the two printed boards 12 are held by the slip-off prevention plate 14. In order to pull out the two printed boards 12 from the housing 11 from the state shown in FIG. 10, the removal prevention plate 14 is removed and the two pulling tools 13 are rotated. The pull-out tool 13 hits the housing 11, and the printed board 12 is pulled out from the connector 15 by the leverage.

[0004]

[Problems to be solved by the device]

 In FIG. 10, the pull-out preventing plate 14 holds the pull-out tool 13 so that the printed board 12 does not come out of the connector 15 even if vibration or shock is applied to the housing 11. However, the removal prevention plate 14 may be forgotten. Further, even when one printed board 12 is inserted into and removed from the housing 11, the removal prevention plate 14 must be attached and detached. An object of the present invention is to provide a pull-out tool having a pull-out prevention function in which the pull-out tool 13 has both a pull-out function and a pull-out prevention function.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, in the present invention, an end portion 1B bent in an L shape at a corner is formed, and a cutout portion 1C through which the printed board 2 comes in and out is formed at the end portion 1B. The housing 1 is provided with a hole 1A in the vicinity, a mounting bracket 3 that is bent in a U-shape and fixed to an end of the print plate 2, and is rotatably held in the mounting bracket 3. The protrusion 4A is in contact with the inside of the end 1B, the protrusion 4B is in contact with the outside of the end 1B, the lever 4C is formed on the opposite side of the protrusion 4A, and one end is in contact with the extractor 4, The torsion coil spring 5 whose other end is in contact with the mounting bracket 3, the stopper 6 which is rotatably held in the mounting bracket 3 and into which the projection 6A goes in and out of the hole 1A of the housing 1, and one end of which is in contact with the stopper 6. The other end is provided with a torsion coil spring 7 in contact with the mounting bracket 3, and the printed board 2 is mounted on the housing 1. When entering, the projection 6A of the stopper 6 enters the hole 1A and the print plate 2 is locked to the housing 1. When removing the printed board 2 from the housing 1, the stopper 4 is rotated by rotating the lever 4C. 6 rotates, the protrusion 6A separates from the hole 1A, and the protrusion 4B pushes the outside of the end portion 1B.

[0006]

[Action]

 Next, the construction of the printed board extractor according to the present invention will be described with reference to the exploded perspective view of FIG. In FIG. 1, 1 is a housing, 2 is a printed board, 3 is a mounting bracket, 4 is an extractor, 5 and 7 are torsion coil springs, 6 is a stopper, and 8 is a pin. A hole 1A is formed in the bottom surface of the housing 1, an end portion 1B whose corner is bent into an L shape is formed, and a cutout portion 1C is formed in the end portion 1B. The printed board 2 is provided with a fixing hole 2A for attaching the mounting member 3 at its end, and the notch 1C has a cutout width that allows the printed board 2 to move in and out.

The mounting member 3 is bent in a U-shape, and a hole 3A is formed in the side surface. A protrusion 4A, a protrusion 4B, and a lever 4C are formed in the pulling tool 4, and a hole 4D is formed therein. The U-shaped inside of the mounting bracket 3 accommodates a pulling tool 4, a torsion coil spring 5, a stopper 6, and a torsion coil spring 7. The pin 8 is inserted through the hole 3A of the mounting bracket 3, and the pin 8 accommodated inside the mounting bracket 3 is fixed to the mounting bracket 3.

FIG. 2 is an assembly diagram of FIG. 1, and FIG. 3 is an overall configuration diagram. When the lever 4C of the pulling tool 4 is rotated counterclockwise in the state of FIG. 3, the stopper 6 rotates in the same direction, the projection 6A is disengaged from the hole 1A, the printed board 2 moves leftward, and the housing 1 Removed from.

Next, the operation of FIG. 3 will be described with reference to FIGS. 4 to 8. FIG. 4 is a sectional view of a portion of the pulling tool 4 and the torsion coil spring 5. In FIG. 4, the torsion coil spring 5 is held by the extracting tool 4, one end of which is stopped inside the extracting tool 4 and the other end of which is fixed by the mounting bracket 3. The torsion coil spring 5 rotates the extractor 4 clockwise with the pin 8 as the center of rotation. The protrusion 4A hits the end 1B of the housing 1 and the pullout tool 4 stops rotating.

FIG. 5 is a cross-sectional view of the pull-out tool 4, the stopper 6, and the torsion coil spring 7, and is a state diagram when the print plate 2 is inserted into the housing 1. In FIG. 5, since the protrusion 6A of the stopper 6 enters the hole 1A of the housing 1, the printed board 2 does not come out of the housing 1. The torsion coil spring 7 applies a rotational force to the stopper 6 in the clockwise direction so that the protrusion 6A does not come out of the hole 1A. The center of the torsion coil spring 7 is held by a pin 8, one end of which is stopped by a stopper 6 and the other end of which is stopped by a mounting member 3.

FIG. 6 is an operation start state diagram when the printed board 2 is removed from the housing 1 from the state of FIG. When the lever 4C of the extractor 4 is rotated counterclockwise from the state shown in FIG. 6, the protrusion 4D of the extractor 4 contacts the protrusion 6C of the stopper 6.

FIG. 7 is a state diagram when the lever 4C is further rotated from the state of FIG. In FIG. 7, the pulling tool 4 rotates the stopper 6 counterclockwise while contacting the convex portion 4D and the convex portion 6C of the stopper 6, so that the protrusion 6A of the stopper 6 separates from the hole 1A of the housing 1. In the state of FIG. 7, the protrusion 4B of the pulling tool 4 contacts the end portion 1B of the housing 1.

FIG. 8 is a diagram showing the completed removal of the printed board 2. FIG. 8 is a state diagram in which the lever 4C is further rotated from the state of FIG. 7, and since the protrusion 4B acts on the end portion 1B of the housing 1 in the right direction with the pulling tool 4 using the pin 8 as a fulcrum of the lever. As a reaction, the printed board 2 translates leftward. As a result, the printed board 2 can be removed from the housing 1. When the printed board 2 is moved to the right from the state of FIG. 7, the printed coil of FIG. 3 is inserted by the action of the torsion coil springs 5 and 7 for returning.

[0014]

[Effect of the device]

 According to this invention, a hole is made in the housing, the extraction tool and the stopper are provided on the printed board, the protrusion that goes in and out of the hole of the housing is formed in the stopper, and the extraction tool rotates the stopper. When the printed board is inserted, the print board does not come out of the housing unless the lever of the extractor is rotated, and the extractor has both the extraction function and the removal prevention function.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a printed board extractor according to the present invention.

FIG. 2 is an assembly diagram of FIG.

FIG. 3 is an overall configuration diagram.

FIG. 4 is a cross-sectional view of a pull-out tool 4 and a torsion coil spring 5.

FIG. 5 is a cross-sectional view of a pulling tool 4, a stopper 6, and a torsion coil spring 7.

6 is an operation start state diagram when the printed board 2 is removed from the housing 1 from the state of FIG.

FIG. 7 is a state diagram when the lever 4C is rotated from the state of FIG.

FIG. 8 is a diagram showing a completed removal of the printed board 2;

FIG. 9 is a configuration diagram of a printed board extractor according to a conventional technique.

FIG. 10 is a partial perspective view of FIG.

[Explanation of symbols]

 1 Case 1A Hole 1B End 1C Notch 2 Printed Board 2A Fixing Hole 2B Notch 3 Mounting Bracket 3A Hole 4 Extractor 4A ・ 4B Projection 4C Lever 4D Hole 5 Torsion Coil Spring 6 Stopper 6A Projection 6B Coil Spring 7 Screw 8 pin

Claims (1)

[Scope of utility model registration request] 1. An end portion (1B) bent in an L shape at a corner is formed, and a cutout portion (1C) through which a printed board (2) comes in and out is formed at the end portion (1B), and the cutout portion (1C) is formed. ), A housing (1) with a hole (1A) near it, a mounting bracket (3) that is bent in a U shape and fixed to the end of the printed board (2), and a mounting bracket (3). Holds rotatably inside and has a first protrusion (4A) inside the end (1B) of the housing (1).
And the second protrusion (4B) contacts the outside of the end (1B),
Puller with lever (4C) formed on the opposite side of the protrusion (4A)
(4), a first torsion coil spring (5), one end of which is in contact with the extraction tool (4) and the other end is in contact with the mounting bracket (3), and is rotatably held in the mounting bracket (3), Housing (1) hole (1
The stopper (6) where the third protrusion (6A) goes in and out of (A) and the second torsion coil spring (7) whose one end contacts the stopper (6) and the other end contacts the mounting bracket (3). When inserting the printed board (2) into the housing (1),
The third protrusion (6A) of (6) enters the first hole (1A), the printed board (2) is locked to the housing (1), and the printed board (2) is placed in the housing.
To remove from (1), rotate the lever (4C) to rotate the stopper (6) and the third protrusion (6A) to the first hole.
(1A) is detached, and the second projection (4B) pushes the outer side of the end (1B), the removal tool of the printed board withdrawal device.