JP2000348837A - Joint connector and installation jig for joint connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely detect half insertion of a terminal metal fitting. SOLUTION: In an assembling process of a bus bar body 50 in a housing 10, a temporary lock position lying short of a normal assembling position for short-circuiting a terminal metal fitting 20 is set on the deeper side in the assembling direction than a position where the bus bar body 50 hits against a lance 12, and a tab piece 57 makes no contact with the terminal metal fitting 20 from the start of the assembling of the bus bar body 50 till its arrival at the temporary lock position. Because the bus bar body 50 does not undergo contact resistance between the tab piece 57 and the terminal 20 from the start of the assembling, via the position where it hits against the lance 12, till its arrival at the temporary lock position, assembling resistance owing to the hitting against the lance 12 is discriminated from assembling resistance owing to the contact of the terminal metal fitting 20 with the tab piece 57, and thus the inserted state of the terminals metal fitting 20 can be surely detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint connector.

[0002]

2. Description of the Related Art A connector having a function of detecting half-insertion of a terminal fitting is disclosed in Japanese Patent Application Laid-Open No. 9-106847. In this method, a cavity is formed in the housing, and a lance for retaining the terminal fitting is formed in the cavity so as to face the outer surface of the housing, and the retainer is externally fitted along the outer surface of the housing. It is. When the terminal fittings are properly inserted, the lance is flush with the outer surface of the housing,
The retainer can be assembled to the housing without interfering with the lance, but when the terminal fitting is in the half-inserted state, the lance will interfere with the side surface of the terminal fitting and protrude outward from the outer surface of the housing. The assembly is regulated by hitting the lance. Thus, the insertion state of the terminal fitting can be detected based on whether or not the retainer can be assembled.

Incidentally, the present applicant has devised the following joint connector. This is, as shown in FIG. 11, a housing 100 in which a plurality of cavities 101 are formed in parallel, a bus bar body 104 that is assembled along the outer surface of the housing 100 from the front, and an assembly that covers the housing 100. A terminal 105 (not shown) is inserted into the cavity 101 from the rear of the housing 100 and the bus bar 104B of the bus bar body 104 is connected to the terminal so that the terminal is short-circuited. It was done.

In order to apply the terminal fitting insertion detecting structure to the joint connector, a lance (not shown) for preventing the terminal fitting from coming off is formed facing the outer surface of the housing 100, and the terminal fitting is formed. When the metal fitting is properly inserted, the lance is flush with the outer surface of the housing 100, and when the terminal metal fitting is half-inserted, the lance projects from the outer surface of the housing 100 and the busbar body 104.
The structure may interfere with the cylindrical portion 104A. With such a structure, the busbar body 10
The insertion state of the terminal fitting can be detected based on the possibility of the assembly of No. 4.

[0005]

When the insertion of the terminal fitting is detected using the bus bar body 104 as described above, the following problem occurs. That is, when the terminal fittings are in the half-inserted state, the cylindrical part 104A interferes with the lance in the process of assembling the bus bar body 104, and as a result, assembling resistance is generated. However, in the process of assembling the bus bar body 104, the bus bar 104 is also detected.
B is fitted with the terminal fitting, and an assembling resistance due to the friction also occurs. Therefore, when the worker senses the assembly resistance caused by the interference with the lance, the operator mistakes the assembly resistance for the friction with the terminal fittings and breaks the lance by forcibly continuing the assembly. It is feared that On the other hand, the assembly resistance caused by friction with the terminal fitting is misunderstood as being caused by interference with the lance, and a wasteful operation of re-examining the inserted state of the terminal fitting is performed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to make it possible to reliably detect half-insertion of a terminal fitting.

[0007]

According to a first aspect of the present invention, there is provided a housing having a plurality of cavities into which terminal fittings are inserted, and the terminal fittings being engaged with the terminal fittings properly inserted into the cavities. Can be retained,
A lance exposed to the outer surface of the housing and capable of elastic displacement outward and a plurality of tab pieces are housed in a cylindrical portion, and assembled so that the cylindrical portion is fitted to the housing. A bus bar body that short-circuits the terminal fittings by bringing a tab piece into contact with the terminal fittings, and the lance does not interfere with the cylindrical portion when the terminal fittings are properly inserted. When the terminal is in a position allowing the assembling of the bus bar body to the housing, and the terminal fitting in a half-inserted state is present, the lance is elastically displaced to the outside of the housing due to interference with the terminal fitting. Assembling of the bus bar body is regulated by abutting the cylindrical portion against the tip of the lance, and based on the possibility of assembling the bus bar body, A joint connector for detecting an insertion state of a child metal fitting, wherein the bus bar is at a temporary locking position before a regular mounting position for short-circuiting the terminal metal fitting in a process of mounting the bus bar body to the housing. A temporary locking means capable of holding the body is provided, and the temporary locking position is in a mounting direction of the bus bar body,
Due to the half insertion of the terminal fitting, the bus bar body is set at a position deeper than a position where the bus bar body abuts on the lance,
Further, the tab pieces are kept in non-contact with the terminal fittings from the time when the bus bar body starts to be assembled to the time when the bus bar body reaches the temporary locking position.

According to a second aspect of the present invention, there is provided a set of joint connectors for setting the joint connector according to the first aspect and displacing the bus bar body from the temporary locking position to the proper mounting position. An attachment jig that regulates the setting of the joint connector when the bus bar body is in a position between the start of assembly to the housing and the temporary locking position, and the bus bar body is provided with the temporary engagement member. The joint connector can be set only in the stop position.

[0009]

According to the first aspect of the present invention, in the process of assembling the bus bar body to the housing, after the assembly is started, the bus bar body comes into contact with the lance caused by the half-insertion of the terminal fitting. In the meantime, the bus bar body does not receive the resistance caused by the contact between the tab piece and the terminal fitting until reaching the temporary locking position, and the contact between the tab piece and the terminal fitting starts after passing through the temporary locking position. This makes it possible to clearly determine the mounting resistance of the bus bar body due to the contact with the lance and the mounting resistance due to the contact between the terminal fitting and the tab piece. Can be detected.

[Invention of Claim 2] Even if an attempt is made to set the joint connector while the terminal metal fitting is not fully inserted, the joint connector cannot be set because the bus bar body is at a position where it abuts against the lance.
As a result, the presence of the terminal fitting in the half-inserted state is detected.

[0011]

[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. The joint connector of the present embodiment includes a housing 1
0, a plurality of terminal fittings 20, a seal member 30, a seal holder 40, two bus bar bodies 50, and a cap 60. The plurality of terminal fittings 20 are short-circuited by a plurality of bus bars 55 in a predetermined short circuit pattern.

<Housing 10> The housing 10 is made of a synthetic resin material. In the housing 10, a plurality of cavities 11 penetrating in the front-rear direction are divided into upper and lower tiers, and are arranged at a constant pitch in a horizontal row for each tier. It is formed. A substantially first half region of the upper cavity 11 and a substantially first half region of the lower cavity 11 are respectively connected to the housing 10.
Each of the open portions is formed with a lance 12 projecting forward in a cantilever manner.
The upper row of cavities 11 and the lower row of cavities 11
Between the rows, there is formed a horizontally elongated slit-shaped recess 13 for inserting the peripheral wall of the bus bar body 50. still,
The upper surface wall and the lower surface wall of the concave portion 13 are partially notched so as to communicate with the upper cavity 11 and the lower cavity 11, respectively.

Here, the lance 12 will be described in detail. The lance 12 holds the terminal fitting 20 inserted into the cavity 11 in a retaining state, and also has a function of detecting the inserted state of the terminal fitting 20 by cooperating with the cylindrical portion 53 of the bus bar body 50 as described later. Demonstrate. That is, the lance 12 is arranged so as to be exposed on the outer surface of the housing 10. In a state where the terminal fitting 20 is not inserted into the cavity 11 and a state where the terminal fitting 20 is properly inserted, the lance 12 is in a free state. 12 is the housing 10
It is flush with the outer surface of. In this state, the protruding tip of the lance 12 is locked in the locking hole 24 of the terminal fitting 20, and the terminal fitting 20 is prevented from being pulled out (see the lower row in FIG. 6). When the terminal fitting 20 is at the half-insertion position that does not reach the regular insertion position, the distal end of the lance 12 interferes with the outer surface of the fitting portion 21 of the terminal fitting 20, so that the lance 12
Are elastically displaced outward, so that the tip of the lance 12 projects from the outer surface of the housing 10 (see the upper row in FIG. 6). In this state, the bus bar body 50 is
In the process of assembling, the cylindrical portion 53 of the bus bar body 50 abuts on the front end of the lance 12, and the further assembling operation of the bus bar body 50 is restricted.

<Terminal metal fitting 20> The terminal metal fitting 20 is formed by bending a metal plate material punched into a predetermined shape, and has a rectangular tube-shaped fitting portion 21 having a substantially front half opening in both front and rear directions. Substantially the latter half is the wire connection portion 22 to which the wire 25 is crimped. An elastic contact piece 23 for elastic contact with the tab piece 57 of the bus bar body 50 is formed inside the fitting portion 21, and a locking member for locking with the lance 12 of the housing 10 is formed on a peripheral wall plate of the fitting portion 21. A hole 24 is formed. The terminal fitting 20 is inserted into the cavity 11 of the housing 10 in which the seal member 30 and the seal holder 40 are assembled so as to penetrate the seal holder 40 and the seal member 30 from behind. Immediately before the terminal fitting 20 reaches the regular insertion position, the lance 12 interferes with the outer peripheral surface of the fitting portion 21 so that the lance 12 is elastically displaced so as to protrude outside the housing 10, and the terminal fitting 20 reaches the regular insertion position. And the lance 12 is elastically returned to the locking hole 24.
, So that the terminal fitting 20 is stopped.
When the terminal fitting 20 is inserted into the housing 10,
The insertion posture for the upper cavity 11 and the insertion posture for the lower cavity 11 are vertically symmetric.

<Seal Member 30> The seal member 30 is made of rubber and has an oval thick plate shape.
Is assembled so as to be sandwiched between the rear end face of the seal holder 40 and the front end face of the seal holder 40. The seal member 30 is formed with a plurality of seal holes 31 opened on both front and rear surfaces thereof so as to be aligned with each cavity 11 of the housing 10. The seal hole 31 has a circular shape, and three lip portions 31A having an angled cross section are formed in the circumferential direction on the inner peripheral surface. The inner diameter of the lip portion 31A is set smaller than the outer diameter of the electric wire 25. I have. The electric wire 25 penetrates through the seal hole 31, and the lip portion 31 </ b> A elastically adheres to the outer periphery of the electric wire 25, thereby sealing between the electric wire 25 and the seal hole 31. On the outer periphery of the seal member 30, three lip portions 34 having a substantially semicircular cross section are formed in the circumferential direction. The lip portion 34 elastically contacts the inner periphery of the cap 60 to seal between the outer periphery of the seal member 30 and the inner periphery of the cap 60.

<Seal Holder 40> Seal Holder 40
Is made of a synthetic resin material, has a generally oval thick plate shape like the seal member 30, and has a function of holding the seal member 30 sandwiched between the rear surface of the housing 10. The lip portion 34 on the outer periphery of the seal member 30
Has a dimension slightly larger than the outer circumference of the seal holder 40. A plurality of terminal insertion holes 41 penetrating between the front and rear end surfaces of the seal holder 40 are formed in alignment with the cavities 11 and the seal holes 31. The terminal fitting 20 is inserted from the terminal insertion hole 41 and housed in the cavity 11.

On the outer periphery of the seal holder 40, a total of four lock projections 44 are formed at both ends of the upper and lower flat surfaces. The lock projection 44 regulates the cap 60 from being detached from the housing 10, the seal member 30 and the seal holder 40 by engaging with the cap 60. Further, a pair of left and right symmetrical index protrusions 45 are formed in the arc-shaped regions at the left and right ends on the outer periphery of the seal holder 40 so as to be deviated upward from the center height. The index protrusion 45 serves as a guide for determining the vertical direction of the housing 10 when the terminal fitting 20 is inserted.

<Bus Bar Body 50> The bus bar body 50 is formed by integrating a synthetic resin holding body 51 and a metal bus bar 55 by insert molding. Holder 51
Is composed of a horizontally long plate-like holding portion 52 and a flat tubular portion 53 projecting rearward (in a direction toward the housing 10) from the plate-like holding portion 52. The bus bar 55 is formed by projecting a plurality of tab pieces 57 in a cantilever shape in parallel from the side edge of a band-shaped connecting portion 56 so that the connecting portion 56 is along the plate-shaped holding portion 52 and the tab piece 57 is formed into a cylindrical portion. 53 is held. The adjacent tab pieces 57 in the connecting portion 56
A punching hole 54 is opened in the plate-shaped holding portion 52 at a position corresponding to the gap between them. In the manufacturing process of the bus bar body 50, after the insert molding, a portion facing the punching hole 54 in the connecting portion 56 is set to a predetermined position. By punching with a punch and a die in accordance with the short-circuit pattern, the carrier is divided (not shown) and is thus divided into a plurality of bus bars 55. One bus bar 55 has at least three tab pieces 57, and a plurality of terminal pieces 20 are short-circuited for each bus bar 55 by connecting the terminal pieces 20 to each connection piece.

The busbar body 50 is assembled so that the upper row of cavities 11 and the lower row of cavities 11 are individually covered with the cylindrical portion 53 from the front with respect to the housing 10. Connected to fitting 20. The bus bar body 50 can identify the short-circuit pattern by changing the color of the holding body 51,
The shape of the holding body 51 is vertically asymmetric. Therefore, by confirming the color and the direction, the predetermined bus bar body 50 can be assembled to the housing 10 in the correct direction, and the terminal fittings 20 can be short-circuited in the correct short-circuit pattern.

<Cap 60> The cap 60 is made of a synthetic resin material and has a bottomed cylindrical shape having an oblong shape in a front view. A lock projection 44 of the seal holder 40 is provided on an opening edge of the cap 60.
Is formed, and the cap 60 is locked in the assembled state by the engagement of the lock projection 44 and the lock hole 61. Further, a relief portion 62 bulging to the outer peripheral side for avoiding interference with the index projection is formed at the opening edge of the cap 60. Such a cap 60
The area near the opening edge of the inner peripheral surface of the
The outer peripheral lip portion 34 is a sealing surface 63 to be elastically contacted.

<Semi-insertion detecting means of terminal fitting> Guide grooves 5 are provided on both left and right ends of the cylindrical portion 53 of the bus bar body 50.
8 (temporary locking means, which is a component of the present invention),
The housing 10 is formed with locking projections 17 and 18 (temporary locking means which is a component of the present invention), one for each of the front and rear corresponding to the guide groove 58. The rear end of the cylindrical portion 53 and the rear end edge of the guide groove 58 are locked so as to be sandwiched between the locking projections 17 and 18, so that the bus bar body 50 is held at the temporary locking position (FIG. 5). Also, the guide groove 5
The busbar body 50 is held in a proper assembling position by locking the front and rear end edges of the bushing 8 from both sides against the locking projections 17 and 18 from outside (see FIG. 4). When the terminal 20 reaches the assembly position, the terminal fitting 20 is short-circuited by the bus bar 55. In this manner, the provisional locking means allows the terminal fitting 20 to be short-circuited in the process of mounting the bus bar body 50 to the housing 10 in the temporary mounting position (see FIG. 8 and FIG. 10). The lower part of FIG. 6 and FIG. 7) can hold the bus bar body 50.

The provisionally locked position is the position of the housing 10.
The lance 12 and the bus bar body 50 caused by the half insertion of the terminal fitting 20 in the mounting direction of the bus bar body 50 with respect to
(See the upper row in FIG. 6). Further, the tab pieces 57 are set so as not to be in contact with the terminal fittings 12 from the start of the assembling of the bus bar body 50 to the temporary locking position via the abutting position on the lance 12 to the temporary locking position. .

<Assembling jig 70> In the process of assembling the joint connector, an assembling jig 70 is used.
The assembling jig 70 has both a function of assembling the bus bar body 50 and a function of detecting the inserted state of the terminal fitting 20. The assembling jig 70 is supported by the right end of the substrate 71 as shown in FIGS. 7 to 9, and is rotated between the standby posture shown in FIGS. 7 and 9 and the assembling posture shown in FIG. A pusher 73 which is displaced to the left by a turning operation (a counterclockwise turning operation in the figure) of the lever 72 from the standby position to the assembling position; A positioning body 74 fixed to the left of the moving body 73 is provided. When the lever 72 is at the standby position, the pusher 73 is returned to the rightmost standby position by a return spring (not shown), and the joint connector is returned to the return position with the bus bar body 50 assembled at the temporary locking position. It is set so as to be dropped between a certain pusher 73 and a positioning body 74.

The distance between the pushing body 73 and the positioning body 74 at the return position is the length from the front end of the bus bar body 50 to the rear end of the housing 10 in a state where the bus bar body 50 is assembled at the temporary locking position. It is set to the same or slightly longer dimensions. Therefore, even if an attempt is made to set the joint connector in a state where the bus bar body 50 is not correctly assembled to the temporary locking position, the incorrect bus bar body 50 interferes with the upper surface of the pusher 73, so that the joint connector cannot be set. Has become.

When the lever 72 is rotated from the standby position to the assembled position when the joint connector is set,
The pusher 73 moves to the left, and pushes the bus bar body 50 from the temporary locking position to the proper assembling position. This busbar body 5
While 0 moves, the tab piece 57 of the bus bar body 50 contacts the elastic contact piece 23 of the terminal fitting 20, and the terminal fittings 20 are short-circuited. <Assembly of each part> The assembling procedure of each part is as follows. First, the seal member 30 is held between the housing 10 and the seal holder 40. At this time, a protrusion (not shown) formed on the housing 10 is penetrated through the seal member 30, and the tip of the protrusion is locked to the seal holder 40, so that the seal member 30 is locked in a holding state, The detachment of the seal holder 40 is regulated. Next, the terminal fitting 20
Is inserted into the terminal insertion hole 41 to penetrate the seal hole 31 and is inserted into the cavity 11.

Thereafter, the bus bar body 50 is connected to the housing 10.
Is set in the assembly jig 70 in this state, and the lever 72 of the assembly jig 70 is operated to push the bus bar body 50 from the temporary engagement position to the regular assembly position. Thereby, the terminal fittings 20 are short-circuited in a predetermined pattern. After the bus bar body 50 is assembled, the joint connector is removed from the assembly jig 70, and finally, the cap 60 is assembled so as to cover the housing 10 and the bus bar body 50. In a state where the cap 60 is assembled, the intrusion of water into the cap 60 from the gap between the inner periphery of the cap 60 and the outer periphery of the seal member 30 is prevented by the lip portion 34 on the outer periphery of the seal member 30. Further, water from the outer surface of the seal member 30 is prevented by the lip portion 31A of the seal hole 31 being in close contact with the outer periphery of the electric wire 25.

<Operation and Effect of the Present Embodiment> Terminal Fitting 2
When the bus bar body 50 is assembled to the temporary locking position of the housing 10 after the insertion of all the terminal fittings 20 to the normal position, all the lances 12 are inserted.
Is in a free state, and the tip of the lance 12 is
0 is located so as to be flush with the outer surface. Therefore, while the cylindrical portion 53 slides along the outer surface of the housing 10 with the assembling of the bus bar body 50, the cylindrical portion 53 is
Therefore, the bus bar body 50 can be assembled to the temporary locking position without any trouble. Bus bar body 50
When the lance 12 is assembled at the temporary locking position, the inner surface of the distal end of the cylindrical portion 53 faces the distal end of the lance 12 so as to press the lance 12 from the outside. (See the lower row of FIG. 6).

On the other hand, when the terminal fitting 20 is in a half-inserted state, the distal end of the lance 12 is elastically displaced outward and protrudes from the outer surface of the housing 10. Before reaching the temporary locking position, the distal end of the cylindrical portion 53 abuts against the distal end of the lance 12 (see the upper row in FIG. 6), whereby the resistance to the assembling operation suddenly increases. By sensing the sudden increase in the operation resistance, the operator can detect the presence of the terminal fitting in the half-inserted state.

Normally, the assembling operation of the bus bar body 50 is interrupted in a state where the cylindrical portion 53 abuts against the lance 12, and after the terminal fittings 20 are reinserted, the assembling of the bus bar body 50 is performed again. If the operator does not notice a sudden increase in the operation resistance or forgets to reinsert the terminal fitting 20 even if he notices it, it is conceivable that the operation may be shifted to the assembling work by the assembling jig 70 as it is. However, in this case, as shown in FIG. 9, the busbar body 50 cannot be set in the temporary locking position due to the improper setting of the busbar body 50 due to the inability to set the jig 70. It can be seen that there is a possibility that the terminal fitting 20 of FIG. Even if all the terminal fittings 20 are properly inserted, if the assembly of the bus bar body 50 is in an incomplete state where the temporary connection position is not reached, the joint connector is again attached to the assembly jig 70. In any case, if the mounting state of the bus bar body 50 and the insertion state of the terminal fittings 20 are checked at the time when the setting to the mounting jig 70 is impossible, the mounting failure can be solved. it can.

As described above, in the present embodiment, in the process of assembling the bus bar body 50 to the housing 10, after the assembly is started, the lance 12 abuts against the bus bar body 50 due to the half insertion of the terminal fitting 20. After passing through the position, the bus bar body 50 does not receive resistance due to the contact between the tab piece 57 and the terminal fitting 20 after reaching the temporary locking position. Contact with 20 begins. Therefore, it is possible to clearly discriminate between the assembly resistance received by the bus bar body 50 due to the abutment on the lance 12 and the assembly resistance caused by the contact between the terminal fitting 20 and the tab piece 57. 20 can be reliably detected.

Further, even if the user attempts to set the joint connector on the mounting jig 70 while observing the half-insertion of the terminal fittings 20 in the process of mounting the bus bar body 50, the bus bar body 50 is at a position where it abuts against the lance 12. The joint connector cannot be set.
As a result, the presence of the terminal fitting in the half-inserted state is detected. That is, since a double check mechanism is provided for detecting half-insertion of the terminal fitting 20 both in the process of assembling the bus bar body 50 and when setting the terminal fitting 20 in the assembling jig 70. High reliability of half insertion detection function.

[Other Embodiments] The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) In the above embodiment, the waterproof type joint connector has been described. However, the present invention can be applied to a non-waterproof type joint connector.

(2) In the above embodiment, the half-insertion detection of the terminal fitting is performed in both the step of assembling the bus bar body to the housing and the step of setting the joint connector to the assembling jig. According to this, the half-insertion detection of the terminal fitting may be performed only by the assembling process of the bus bar body without using the assembling jig.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a seal member and a seal holder are assembled to a housing in a first embodiment.

FIG. 2 is a partially cutaway perspective view of a bus bar body.

FIG. 3 is a perspective view of a cap.

FIG. 4 is a partially cutaway plan view showing an assembled state.

FIG. 5 is a partially cutaway plan view showing a state where the bus bar body is at a temporary locking position.

FIG. 6 is a longitudinal sectional view showing a state where a bus bar body is assembled to a housing.

FIG. 7 is a cross-sectional view showing a state where the joint connector is set on an assembly jig.

FIG. 8 is a cross-sectional view showing a state where the bus bar body has been displaced to a regular assembling position by an assembling jig.

FIG. 9 is a cross-sectional view showing a state where an attempt is made to set a joint connector to an assembling jig while a half-inserted terminal is present.

FIG. 10 is a sectional view of an assembled state.

FIG. 11 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Housing 11 ... Cavity 12 ... Lance 17 ... Locking projection (temporary locking means) 18 ... Locking projection (temporary locking means) 20 ... Terminal fitting 50 ... Busbar body 53 ... Cylindrical part 57 ... Tab piece 58 ... Guide Groove (temporary locking means) 70: assembly jig

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H01R 43/26 H01R 43/26 F term (Reference) 5E021 FA05 FA14 FA16 FB07 FB30 FC32 FC38 JA05 KA05 5E063 KA01 5E087 EE14 FF03 FF08 FF13 GG15 HH01 HH02 LL03 LL12 QQ06 RR12 RR25 RR26 RR47

Claims (2)

[Claims] 1. A housing having a plurality of cavities into which terminal fittings are inserted, and the terminal fittings can be prevented from coming off by engaging with the terminal fittings properly inserted into the cavities. A lance that is exposed and elastically displaced outwardly, and a plurality of tab pieces are housed in a cylindrical portion, and the tab pieces are assembled to the housing so as to fit the cylindrical portion to the terminal. A bus bar body that short-circuits the terminal fittings by contacting the fittings, and in a state where the terminal fittings are properly inserted, the lance does not interfere with the cylindrical portion and the lance does not interfere with the housing. When the terminal fitting is in a position where the busbar body is allowed to be mounted and the terminal fitting in a half-inserted state is present, the lance is interfered with the terminal fitting and the lance is displaced. The cylindrical portion is elastically displaced to the outside of the housing, and the cylindrical portion abuts against the tip of the lance, so that the mounting of the bus bar body is regulated. The terminal is determined based on whether the bus bar body can be mounted. A joint connector for detecting an insertion state of a metal fitting, wherein the busbar body is located at a temporary locking position before a regular mounting position for short-circuiting the terminal metal fitting in a process of mounting the busbar body to the housing. The temporary locking position is provided at a position deeper than a position where the bus bar body abuts against the lance due to half insertion of the terminal fitting in the mounting direction of the bus bar body. And the tab pieces are kept in non-contact with the terminal fittings from the start of the assembling of the bus bar body to the provisional locking position. Joint connector, characterized in that it is configured to. 2. A jig for assembling a joint connector for setting the joint connector according to claim 1 and displacing the bus bar body from the temporary locking position to the proper assembling position. In a state where the bus bar body is in a position from the start of assembly to the housing to the temporary locking position, the setting of the joint connector is regulated, and the bus bar body is in the temporary locking position. A jig for assembling the joint connector, wherein the setting of the joint connector is allowed only in the above.