JP3468320B2 - Terminal incorrect insertion prevention jig - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal erroneous insertion preventing jig for preventing erroneous insertion of a terminal into an empty cavity where the terminal is not to be inserted. 2. Description of the Related Art Normally, a connector is provided with a plurality of cavities. For example, a specific electric device may or may not be connected depending on a grade of an automobile. In some cases, there may be empty cavities where terminal fittings are not expected to be inserted. For this reason, erroneous insertion prevention measures have been conventionally taken to prevent erroneous insertion of the terminal fitting into the empty cavity. That is, a drawing board indicating each cavity is erected on the work site, and the cavities to be inserted are colored. The operator has tried to prevent erroneous insertion by performing the operation while checking the cavity to be inserted on the drawing board. [0003] However, conventional measures for preventing erroneous insertion by visual inspection of an operator are not always reliable. Particularly, when a large number of cavities are juxtaposed or an empty space is expected. If the cavities are irregularly arranged, it is prone to error. [0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a terminal erroneous insertion preventing jig which can surely prevent erroneous insertion of a terminal fitting into an expected cavity. SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method of connecting a terminal fitting to an empty cavity in which a terminal fitting is not scheduled to be inserted among a plurality of cavities provided in a connector housing. A jig for preventing erroneous insertion of a terminal for preventing erroneous insertion, comprising: a connector holder for holding the connector housing; Later provided with an erroneous insertion prevention piece displaced to a closing position that covers and closes the terminal insertion port of the cavity to be vacant , and the connector holder,
The connector housing with the terminal insertion port exposed
The housing housing chamber for housing the
The connector housing is integrally provided with an insertion prevention piece.
Standby position in conjunction with the housing operation in the housing chamber
It is characterized in that an interlocking mechanism for moving from a closed position to a closed position is provided . According to the first aspect of the present invention, the operation of attaching the terminal fitting to the connector housing is performed as follows.
First, the terminal incorrect insertion preventing piece is set to the standby position, and the connector housing is held by the connector holder under this condition. Then, the terminal incorrect insertion preventing piece is moved to the closing position. As a result, of each cavity, the terminal insertion opening of the cavity to which the terminal fitting is not scheduled to be inserted is closed by the corresponding erroneous insertion prevention piece. Therefore, the operator is allowed to insert the terminal fitting only into the terminal insertion opening which is not closed by the erroneous insertion preventing piece. Here, the connector holder
The housing is provided with a housing accommodating chamber.
The housing is stored here with the terminal insertion port exposed.
You. The connector housing is housed in the housing
When it accepts, the erroneous insertion prevention piece stands by in conjunction with the accommodation operation
Automatically displaced from position to closed position . As described above, according to the first aspect of the present invention,
If you set the connector housing to the connector holder,
Since the terminal insertion opening for an empty cavity where the terminal fitting is not scheduled to be inserted can be closed, erroneous insertion of the terminal fitting can be reliably prevented. In particular, connector
Just house the housing in the housing chamber and the terminal
To empty cavities not intended for tool insertion
The child insertion port is automatically closed, improving work efficiency.
Can be . An embodiment embodying a jig for preventing incorrect insertion of a terminal according to the present invention will be described below with reference to FIGS. 1 to 3. <Outline of Connector> First, a connector housing used in this embodiment will be described. The jig for preventing incorrect insertion of a terminal according to the present invention can be widely applied to a general connector housing, and the illustrated one is merely an example. Therefore, the illustration and detailed description thereof are omitted, and the details are very simple. Just a brief explanation. The connector housing is formed in a rectangular parallelepiped made of a synthetic resin, and has a number of cavities inside. A plurality of cavities are provided in two rows vertically and horizontally, and have openings on the front and rear surfaces. The opening formed on the rear surface shown in the figure is a terminal insertion opening, from which a terminal fitting crimped to the wire end is inserted into the cavity. The opening on the front surface (not shown) is a male tab insertion opening, through which the male tab on the mating side is inserted, so that electrical connection with the terminal fitting can be established. Further, a lance which can be flexibly deformed is formed in the cavity, and a locking piece protruding from the terminal fitting is elastically engaged with the lance, so that the terminal fitting accommodated in the cavity is prevented from coming off. . <Jig for preventing incorrect insertion of terminal> The jig for preventing incorrect insertion of terminal has a base plate 10 on the bottom surface as shown in FIG.
The connector holder 1 is integrally formed on the upper surface.
In the connector holder 1, a housing accommodating chamber 2 that fits the outer surface of the connector housing A and has an open upper surface.
Are formed, and a housing accommodating port 2 which is an opening portion
The connector housing A is housed almost in close contact with the connector housing A. The housing accommodating chamber 2 is formed so that the connector housing A can be accommodated with the terminal insertion opening 3 facing upward. As shown in FIG. 1, the base plate 10 extends in the left-right direction of the connector holder 1 and has its peripheral edge raised slightly upward. As a result, mounting grooves 4 are formed at the lower ends of the left and right side surfaces of the connector holder 1 so as to extend back and forth along the connector holder 1.
In each of the mounting grooves 4, the mounting groove 4 and the housing accommodating chamber 2 are provided.
A communication hole 4a is formed, which communicates with the connection groove 4a. The communication hole 4a has an elongated shape extending back and forth along the mounting groove 4. As shown in FIG. 3, a connection plate 5 extending back and forth along the connector holder 1 is accommodated in each mounting groove 4. Rotating shafts 5a protrude from both front and rear ends of the connecting plate 5, and the rotating shafts 5a are fitted into shaft holes 4b formed on both front and rear side walls of the mounting groove 4 while allowing rotation. . The connection plate 5 corresponds to an empty cavity 6 in which the terminal fitting B crimped to the end of the electric wire W is not scheduled to be inserted among the cavities 6 of the connector housing A accommodated in the housing accommodating chamber 2. The erroneous insertion preventing piece 7 is integrally connected to the position (it may be freely replaceable with another part according to the part to be inserted). Each erroneous insertion prevention piece 7
After each projecting from the mounting groove 4 and extending upward along both left and right side surfaces of the connector holder 1, the distal end portion is bent inward of the housing accommodating port 2a. The bent end portion is the insertion port closing portion 7a, and the housing accommodating chamber 2
The terminal insertion opening 3 of the connector housing A housed in the connector housing A is formed so as to be able to be closed from above. Accordingly, each of the erroneous insertion preventing pieces 7 is in a standby position (FIG. 1) in which the insertion port closing portion 7a, which is the distal end portion, is expanded in the left-right direction with respect to the housing accommodating port 2a around the rotation shaft 5a. 2) and a closed position (a position shown in FIG. 2) that closes the terminal insertion opening 3 of the connector housing A housed in the housing housing chamber 2. Also, the connecting plate 5
The torsion shaft 8a is provided with a torsion spring 8 as return means, and biases the erroneous insertion preventing piece 7 to the standby position. When the cavities 6 where the terminal fittings B are not to be inserted are adjacent to each other, the erroneous insertion preventing pieces 7 have a wide shape in which the erroneous insertion preventing pieces 7 corresponding to the respective vacant cavities 6 are connected. . Further, the lower end of the connecting plate 5 is bent substantially at right angles to the connector holder 1 side, and the bent portion of the housing abutting portion 5b projects into the housing accommodating chamber 2 through the communication hole 4a. ing. And, by the connector housing A housed in the housing housing chamber 2,
When the housing contact portion 5b is pressed downward, the tip portion of each erroneous insertion preventing piece 7 rotates from the standby position toward the inside of the housing accommodating port 2a around the rotation shaft 5a.
This is the interlocking mechanism 9 according to the present invention. Next, the operation of this embodiment will be described. Normally, the erroneous insertion preventing piece 7 is urged by the torsion spring 8 and is in the standby position, so that the housing accommodating port 2a is open. Therefore, the connector housing A can be housed in the housing housing chamber 2, and the operator houses the connector housing A in the housing housing chamber 2 with the terminal insertion opening 3 facing upward (see FIG. 1). . As a result, the connector housing A is held by the connector holder 1, and the terminal insertion port 3 is arranged in the housing accommodating port 2a. When the connector housing A is inserted, the housing contact portion 5b of the connecting plate 5 is pressed from above by the connector housing A, and each erroneous insertion preventing piece 7 is housed from the standby position against the urging force of the torsion spring 8. It rotates inward of the mouth 2a. When the connector housing A is completely accommodated in the housing accommodating chamber 2, the terminal insertion opening 3 for the empty cavity 6 where the terminal fitting B is not scheduled to be inserted is inserted by the insertion opening closing portion 7 a of the erroneous insertion preventing piece 7. It is closed (see FIG. 2). After that, the operator mounts the terminal fitting B connected to the terminal of the electric wire W into the cavity 6 through the terminal insertion opening 3. At this time, the operator only has to perform the assembling work only on the terminal insertion opening 3 which is not closed by the erroneous insertion preventing piece 7. In addition, during the assembling operation, even if the assembling operation is performed by mistake on the empty cavity 6 where the terminal fitting B is not scheduled to be inserted, the terminal insertion opening 3 is closed by the erroneous insertion preventing piece 7. Therefore, the terminal fitting B is not assembled into the cavity 6. As described above, in this embodiment, when the connector housing A is accommodated in the connector holder 1, the terminal insertion opening 3 for the cavity 6 to be vacant is closed by the erroneous insertion preventing piece 7, so that the terminal fitting B is erroneously inserted. The terminal fitting B can be reliably prevented from being erroneously inserted. Further, the prevention of erroneous insertion into the vacant cavity 6 is automatically performed in conjunction with the accommodating operation of the connector housing A in the housing accommodating chamber 2, so that the working efficiency can be improved. The present invention is not limited to the above embodiment, but can be modified and implemented as follows, for example, and these embodiments also belong to the technical scope of the present invention. (1) In the above embodiment, the interlocking mechanism 9 is provided, and the vacant cavity 6 is automatically closed by the erroneous insertion preventing piece 7 in conjunction with the housing operation of the connector housing A. The terminal insertion opening 3 may be closed by moving the erroneous insertion prevention piece by hand without providing the interlocking mechanism. (2) In the above embodiment, the erroneous insertion preventing piece 7
Is provided so as to be rotatable about the rotation shaft 5a, thereby closing the terminal insertion opening 3 with respect to the cavity 6 to be vacant. However, the present invention is not limited to this. For example, each erroneous insertion preventing piece is slidably provided on both the left and right sides with respect to the housing accommodating port. May be opened, and when the connector housing is accommodated in the housing accommodating chamber, each erroneous insertion preventing piece may be slid so as to protrude from the left and right sides with respect to the housing accommodating opening. In addition, the present invention can be implemented with various modifications without departing from the scope.

[Brief description of the drawings] FIG. 1 is a cross-sectional view showing the entire embodiment. FIG. 2 is a perspective view showing the whole. FIG. 3 is a partially cutaway side view showing the inside of the mounting groove. [Explanation of symbols] 1: Connector holder 2… Housing accommodation room 3. Terminal insertion port 6 ... cavity 7 ... Mis-insertion prevention piece 9 ... Interlocking mechanism A: Connector housing

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 43/20-43/22 H01R 13/42 H01R 13/64

Claims (1)

(57) [Claim 1] Among a plurality of cavities provided in a connector housing, a terminal error for preventing erroneous insertion of a terminal fitting into an empty cavity where the terminal fitting is not scheduled to be inserted. An insertion prevention jig, which is a connector holder for holding the connector housing, and is always held at a retracted position where the connector housing can be mounted, and after the connector housing is mounted, inserts a terminal into the vacant cavity. An erroneous insertion preventing piece displaced to a closing position for covering and closing the opening , and the terminal insertion opening is exposed on the connector holder.
Housing housing for housing the connector housing in a state.
While the chamber is provided, the erroneous insertion preventing piece is integrally provided.
The connector housing into the housing receiving chamber.
Move from the standby position to the closed position in conjunction with the storage operation
A jig for preventing incorrect insertion of a terminal, comprising an interlocking mechanism .