JP2008192518A - Connector pin-extracting tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector pin-extracting tool having an extremely simple structure, and capable of extracting a connector pin without using restoration force of a spring as extraction force of the connector pin. <P>SOLUTION: This connector pin-extracting tool has a structure including: a columnar body part 1 having a columnar space part 5 and a guide hole 6 connected to a tip of the columnar space part 5; a handle part 12 inserted into the columnar space part 5; a pin-pressing part 10 connected to a tip of the handle part 12, and inserted into the guide hole 6 for pressing the connector pin; a spring 13 arranged between the tip of the columnar space part 5 and the tip of the handle part 12, and compressed when the handle part 12 is pressed to press the connector pin by the pin-pressing part 10; and restriction parts 3, 4 and 14 for restricting a range for the handle part 12 to slide in the columnar space part 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector pin removal jig, and more particularly to a connector pin removal jig used for removing a connector pin press-fitted into a wiring hole of a printed board.

  As shown in FIG. 12, a connector having a structure in which a connector pin 31 is directly press-fitted into a wiring hole of a printed board 30 has been used in recent years. When the connector pin 31 press-fitted into the board 30 is removed or replaced, the board 30 is fixed, and the connector pin 31 is sandwiched from the press-fitting surface side with the tool 40 to the surface of the board 30. It is necessary to pull it out manually. Therefore, there is a problem that the adjacent pin is bent or the through hole is damaged. In addition, since a force is applied to the substrate 30, there is a problem that stress is applied to the substrate.

Thus, it is conceivable to solve the above problem by using a connector pin removal jig disclosed in Patent Documents 1 to 3 and the like.
Japanese Utility Model Publication No. 57-143595 JP 2000-77158 A Japanese Utility Model Publication No. 5-75991

  In the connector pin removal jigs of Patent Documents 1 and 2, a piston member is provided that is slidable in the columnar space in the main body, and the piston member is slid by a holder biased by a spring. The connector pin is removed from the through hole of the board by an ejector pin provided at the tip of the board. Such connector pin removal jigs of Patent Documents 1 and 2 use a piston member, and thus have a disadvantage that the number of parts increases and the structure becomes complicated.

  Although the connector pin removal jig of Patent Document 3 has a simple structure that does not use a piston member, a rod-shaped member that comes into contact with the connector pin is compressed in advance against the spring force. The connector pin is pulled out of the board by the restoring force of the spring in a state where the tip of the rod-shaped member is held in contact with the connector pin. Since the connector pin is pulled out by using the spring restoring force in this way, it is necessary to increase the spring restoring force in order to obtain a sufficient pulling force. If it does so, it will be required that the force for compressing the spring against the spring force before use is required to be quite strong. There is also a problem that is added as a reaction to the worker. This also applies to the jig disclosed in Patent Document 1.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector pin removal jig capable of removing a connector pin with a very simple configuration and without using a spring restoring force.

  A connector pin removal jig according to the present invention is a connector pin removal jig for removing a connector pin, the columnar body having a columnar space and a guide hole connected to the tip of the columnar space, A handle part inserted into the columnar space part, a pin pressing part connected to the tip of the handle part and inserted into the guide hole to press the connector pin, the tip of the columnar space part and the handle part A spring that is provided when the handle is pressed so that the pin pressing portion presses the connector pin, and a range in which the handle slides on the columnar space. And a regulating means for regulating.

  The restricting means is screwed into the recessed portion provided on the outer peripheral surface of the handle portion and having a length corresponding to the sliding range, the screw hole provided in the columnar body portion, and the screw hole. And a screw having a tip engaged with the recess.

  Further, the restricting means is characterized by comprising step portions respectively provided in the handle portion and the columnar space portion.

  According to the present invention, since a member such as a piston is not used and the return force of the spring is not used as a pin pulling force, it is possible to apply stress to the operator and the substrate with a simple structure. There is no effect.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view of an embodiment of the present invention, and FIG. 2 is a sectional view after assembly. This example basically includes a main body 1 and a handle 12. In FIG. 1, the main body 1 is shown in a sectional view, and the handle 12 is shown in a side view.

  The main body 1 has a columnar shape having a columnar space 5, the tip 2 of the main body 1 is thinner than the diameter of the main body 1, and a pin pushing portion guide hole 6 is provided. The tip of the guide hole 6 is open, and the other end is connected to the columnar space 5 of the main body 1. The other end of the columnar space 5 is open. The handle portion 12 is a columnar member that is inserted into the columnar space portion 5 of the main body portion 1, and a tip of the pin pressing portion 10 is provided at the tip thereof. The pin pressing portion 10 is a pin pressing portion guide hole of the main body portion 1. 6 will be inserted. The pin pressing portion 10 and the handle portion 12 are connected by a spring pressing portion 11 that restricts the movement of the spring 13.

  The main body portion 1 is provided with a screw hole portion 3. After the handle portion 12 is inserted into the columnar space portion 5 of the main body portion 1, the screw 4 is screwed into the screw hole portion 3, thereby the handle portion. 12 is prevented from falling off the main body 1. Further, the handle portion 12 is provided with a sliding range restricting groove 14 at a portion corresponding to the screw hole portion 3 of the main body portion 1, and the handle portion 12 has a main body portion as shown in the sectional view of FIG. The screw 4 is adapted to engage with the groove 14 when inserted into the one columnar space 5.

  In such a configuration, the pin pressing portion 10 through which the spring 13 is passed is inserted in this order into the columnar space portion 5 and the pin pressing portion guide hole 6 of the main body portion 1, and the screw 4 is screwed into the screw hole portion 3, thereby Assembling is performed so as to abut against the sliding range regulating groove 14 of the portion 12. FIG. 2 is a sectional view after the assembly, and FIG. 3 is a side view thereof.

  Then, as shown in FIGS. 2 and 3, the pin pushing portion guide hole 6 of the tip portion 2 is aligned with the connector pin 31 of the printed board 30. In this state, when the operator presses the handle portion 12 in the direction of the arrow (the direction of the board 30), the connector pin 31 can be removed as shown in FIG. At this time, since the spring 13 is compressed between the spring pressing portion 11 of the handle portion 12 and the main body portion 1, when the operator pulls out the force after the pinning is finished, the handle portion 12 is pulled by the return force of the spring. It will return to the original position of FIG. It is clear that the sliding range within the main body 1 of the handle portion 12 is determined by the length of the sliding range regulating groove 14.

  FIG. 5 is an exploded view of another embodiment of the present invention, FIG. 6 is a view showing an assembly procedure thereof, and FIG. 7 is a sectional view after the assembly. 5 to 7, the same parts as those in FIG. 1 are denoted by the same reference numerals. In this example, the main body is divided into two main bodies 1a and 1b, which are coupled to each other by screw parts 7a and 7b and integrated. Accordingly, the columnar space portions 5a and 5b of the two main body portions 1a and 1b are also integrated to form the columnar space portion 5 of FIG.

  By assembling the parts according to the arrows shown in FIG. 6, the connector pin removal jig of the present invention is configured as shown in FIG. FIG. 8 shows a cross-sectional view when the connector pin 31 of the substrate 30 is removed using this jig, which is the same as FIG. FIG. 9 is a cross-sectional view showing a state in which the handle 12 is returned to the original position by the restoring force of the spring 13 after the connector pin is removed.

  FIG. 10 is an exploded view showing still another embodiment of the present invention, and parts equivalent to those in FIG. 5 are denoted by the same reference numerals. In this example, in order to regulate the sliding range of the handle portion 12, a step portion 15 is provided in the handle portion 12, and a step portion 8 is provided in the columnar space portion 5b of the main body portion 1b. That is, the diameter of the rear end portion pushed by the operator of the handle portion 12 is further reduced, and the diameter of the rear end portion of the columnar space portion 5b is reduced accordingly. Instead, the screw 4 and the sliding range regulating groove 14 of FIG. 5 are omitted. In this example, the jig similar to each of the previous embodiments is completed by assembling in the procedure of the arrow shown in FIG.

  FIG. 11 is an exploded view showing another embodiment of the present invention, and parts equivalent to those in FIG. 5 are denoted by the same reference numerals. In this example, the pin pressing portion 10 and the spring pressing portion 11 at the distal end portion of the handle portion 12 are formed separately from the handle portion main body, and are configured to fix them when assembled.

  In each of the above-described embodiments, the pin pressing portion 10 is single. However, a plurality of the pin pressing portions 10 are combined with the plurality of connector pins 31, and the pin pressing portion guide hole 6 in the distal end portion 2 of the main body portion 1 is formed. By adopting a structure in which a plurality of pins are provided correspondingly, a plurality of connector pins can be simultaneously removed from the substrate, and work efficiency can be improved.

It is an exploded view showing one embodiment of the present invention. It is sectional drawing after the assembly of one embodiment of this invention. It is a figure explaining operation | movement in the case of extracting a connector pin using one embodiment of this invention. It is sectional drawing at the time of connector pin extraction using one embodiment of this invention. It is an exploded view which shows other embodiment of this invention. It is a figure which shows the assembly procedure of other embodiment of this invention. It is sectional drawing after the assembly of other embodiment of this invention. It is sectional drawing at the time of connector pin extraction using other embodiment of this invention. It is sectional drawing after connector pin extraction using other embodiment of this invention. It is an exploded view which shows other embodiment of this invention. It is an exploded view which shows another embodiment of this invention. It is a figure explaining the prior art example in the case of extracting a connector pin from a board | substrate.

Explanation of symbols

1,1a, 1b Body
2 Tip
3 Screw hole
4 Screw 5,5a, 5b Columnar space
6 Pin pushing part guide hole 7a, 7b Screw part 8, 15 Step part
10 Pin push part
11 Spring holding part
12 Handle part
13 Spring
14 Sliding range restriction groove
30 Printed circuit board
31 Connector pin

Claims (3)

A connector pin removal jig for removing a connector pin,
A columnar body having a columnar space and a guide hole connected to the tip of the columnar space;
A handle portion inserted through the columnar space,
A pin pressing portion connected to the tip of the handle portion and inserted through the guide hole to press the connector pin;
A spring provided between the tip of the columnar space portion and the tip of the handle portion and compressed when the handle portion is pressed such that the pin pressing portion presses the connector pin;
And a regulating means for regulating a range in which the handle portion slides on the columnar space.   The restricting means is provided on an outer peripheral surface of the handle portion and has a length corresponding to the sliding range, a screw hole provided in the columnar body portion, and screwed into the screw hole. The jig according to claim 1, comprising a screw having a tip engaged with the recess.   The jig according to claim 1, wherein the restricting means includes stepped portions respectively provided in the handle portion and the columnar space portion.

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